One man has died and another injured after a high-speed crash involving four cars on the Bay Bridge on Friday night. The crash temporarily closed westbound I-80 lanes near the incline.

According to KTVU, a four-car collision on the Bay Bridge late Friday night left one man dead and another person injured, according to the California Highway Patrol. The crash, which occurred around 11:15 p.m. on the westbound lanes of I-80 near the incline, caused major traffic disruption and temporarily shut down four lanes.

CHP says the incident began when a white Genesis sedan, traveling at a high speed, failed to notice slower traffic ahead and rear-ended a silver Toyota Corolla. The impact triggered a chain reaction, causing the Corolla to collide with a second silver Toyota, which then struck a fourth vehicle—a gray Toyota.

The driver of the Corolla suffered severe injuries and was transported to a local hospital, where he was later pronounced dead. His identity has not been released. Another person involved in the crash was hospitalized, though their identity and condition remain unclear.

An earlier report had suggested drugs or alcohol may have played a role, but CHP has since stated that impairment is not believed to be a factor. The driver of the Genesis remained at the scene and cooperated with authorities.

The total number of people involved and the full extent of injuries are still being determined. All westbound lanes were reopened shortly before 1 a.m. Saturday as the investigation continues.

Image: Gaustria/Wikimedia

#102917WF1 UPDATE FIRE 44 MOLIMO DR CONTAINED 1st Alarm 1 fatality 1 victim 1 Displaced Und. Investigation 554 am pic.twitter.com/anFw3d30ue

— San Francisco Fire (@sffdpio) October 29, 2017

One person is dead and a second injured, after an early-morning fire broke out in a home near Glen Canyon Park.

According to the San Francisco Fire Department, the blaze at 44 Molimo Drive was reported at around 4:20 Sunday morning.

According to NBC Bay Area, "neighbors quickly ran out to see if they could help calm the blaze but found 20 to 30-foot flames engulfing the structure for about ten minutes."

When they arrived on the scene, firefighters were met with "heavy fire blowing out of the front of the building," San Francisco Fire Department spokesperson Lieutenant Jonathan Baxter said.

"The whole front of the house had flames coming out the front," neighbor Daniel Homsey, told NBC Bay Area. "People had fire hoses, trying to suppress the fire and stop it from spreading to the homes nearby."

That combined effort was successful, the Chron reports, as by 6 a.m. firefighters had contained the blaze and "prevented the flames from spreading to neighboring homes."

However, the SFFD says that one adult was killed in the blaze, their body found on the first floor of the home. According to NBC, they were "killed trying to escape from the front of the home which was engulfed in flames." As of publication time, they had not been publicly identified.

The homeowner managed to escape from the rear of the two-story home, NBC reports. According to Bay City News, that person was injured in the fire but is is stable condition at an area hospital.

According to the SFFD, the cause of the fire remains under investigation.

US Park Police investigating the death of a woman at Ft Funston. She may have fallen off cliff. @kron4news pic.twitter.com/er0uoEGwYV

— Chuck Clifford (@chuckclifford) October 6, 2017

A woman was killed in San Francisco Thursday evening, after she fell from a cliff at Fort Funston.

San Francisco Fire Department spokesperson Lieutenant Jonathan Baxter tells CBS 5 that the incident was reported via 911 at 4:30 p.m. Thursday.

The woman, since identified by the Chron as 36-year-old Tracy resident Arezoo Yusufi, was standing to the side of one of the area's hang gliding platforms before the fall, CBS 5 reports.

According to ABC 7, "The victim was apparently alone --- and it is unclear how she fell."

"It's a 300 foot fall," Baxter told ABC 7. "We started life-saving measures...unsuccessful."

The platform itself has a safety barrier, CBS 5 reports. According to NBC Bay Area, "There are signs along the trails warning walkers to stay away from the edge. A lot of footprints also can be seen in those dangerous areas."

“Cliffs anywhere are going to be dangerous," Baxter told CBS 5, "That’s why your San Francisco Fire continuously puts out cliff- and surf-rescue warnings which we did today as well. If you’re going to be in the area you need to stay away from the cliffs."

"Our hearts go out to the victim and her family," SF Fire Chief Joanne Hayes-White told ABC 7. "It's always good to have a buddy, or a partner when you're walking."

Related: St. Ignatius High School Student Killed In Fall From San Francisco Cliff

Avoid the area of Fell Street at Baker Street due to #SFPD activity. Expect @sfmta_muni and #SF traffic delays. pic.twitter.com/0etXDL2jxq

— San Francisco Police (@SFPD) October 5, 2017

The day after a fatal collision killed a San Francisco man, police said that the intersection remained the site of an investigation into the crash.

It was 5:22 p.m. Wednesday when a 90-year-old SF resident since identified by the San Francisco Medical Examiner's office as David Grinberg was struck at the intersection of Baker and Fell Streets, police said Thursday morning.

According to the San Francisco Police Department, a 28-year-old woman "was driving down the street when she contacted" Grinberg.

Grinberg was transported to an area hospital, and died at 11:30 that night, the Chron reports.

Additional details on the crash, including which party had the traffic signal, were not provided by police. The SFPD did confirm, however, that the driver had not been arrested following the fatal collision.

As of 6:22 a.m. Thursday, police said via Twitter that the intersection remained the site of an investigation into the crash. At 6:57, police tweeted that the scene had been cleared and that traffic to the area was no longer disrupted.

Related: Driver Arrested After Allegedly Killing Woman On San Francisco Sidewalk

San Francisco's recent heat wave is now San Francisco's deadly heat wave, officials said Wednesday, tracing the demise of three residents to the city's record-breaking temperatures. Add to that a release Thursday from the San Mateo County Coroner saying that three more people died there as a result of the heat — and the death toll may rise as more reports come in from other counties.

The San Francisco Medical Examiner's Office announced that three elderly people died due to “probable” heat-related causes this weekend, the Ex reports.

All three were born in the 1920s or 1930s, lived alone, and died at home, the ME's office says.

None of the deaths were preceded by calls to 911, putting to rest worries that any of the dead were among the 28 life-threatening calls made over a weekend so short on EMTs that fire engine crews had to wait 20 minutes or more for an ambulance to arrive.

San Mateo County Coroner Robert Foucrault told the Chronicle that we can add to that list Patrick Henry of Pacifica, 90; Ernesto Demesa of Daly City, 79; and Loraine Christiansen of Millbrae, 95. Demesa and Henry both lived in homes without air conditioning, Demesa alone and Henry with his wife. Christiansen lived in an assisted living facility.

As noted by NBC Bay Area, "People of advanced ages living independently are the most vulnerable in extreme conditions," saying that the ME's office recommends "well checks and frequent contact to ensure friends, family, and neighbors are healthy and not in need of assistance."

When contacted by the Chron regarding the deaths, Department of Public Health spokeswoman Rachael Kagan said “We will look deeply into these incidents and see what we can learn about improving outreach to elderly and vulnerable populations."

On Tuesday, Supervisors London Breed, Aaron Peskin and Jane Kim called for a hearing on the city's preparation for the heat wave, which the Chron described as "sluggish."

“It is deeply concerning that in a city with San Francisco’s resources, at least three preventable deaths happened as a result of the heat wave — and many more people were affected in non-fatal ways,” Peskin says.

“We will be asking the tough questions to make sure San Francisco is not caught flat-footed again."

And well he should: As previously reported, climate scientists are suggesting that the recent heat wave could be the first of many, as continued climate change makes for conditions leading to extreme temperatures like last weekend's.

"It makes more sense to ask whether global warming made an event more likely," UCLA climate scientist Dr. Daniel Swain says. "And in the case of an unprecedented extreme heat wave, the answer these days is usually yes."

Related: Record-Breaking Heat Could Be Ongoing Trend For SF Bay Area
ABC 7 Weatherman Drew Tuma Collapsed From Heat Exhaustion During Heatwave

*This post has been updated throughout.

A cyclist was killed Tuesday, after police say he was struck by a driver at a busy San Francisco intersection.

According to the San Francisco Police Department, a male cyclist in his 40s was riding through the intersection of Alemany Boulevard and Silver Avenue at 5:34 p.m.Tuesday when the incident occurred.

The report from police states only that a "vehicle on Alemany had a collision with a bicyclist."

The cyclist was transported to San Francisco General Hospital, where police say that he succumbed to his injuries. A spokesperson with the San Francisco Medical Examiner's office confirmed that the deceased had not been publicly identified as of Wednesday morning.

The driver remained at the scene, police say, and cooperated with the investigation. As of publication time, additional details on the crash were not available, nor was any information on possible citations or charges faced by the driver.

CHP trying to determine what this truck was hauling. Hazardous? They don't know. Think 880NB Lane closed 4 cpl hrs. pic.twitter.com/K22M1dLJLS

— Amy Hollyfield (@amyhollyfield) July 27, 2016

The driver of a tanker truck was killed this morning, following a dramatic, fiery crash on Interstate 880.

Bay City News reports that the driver of the big rig was killed "instantly" in the crash, which occurred on 880 in San Leandro just before 4 a.m. near the Davis Street exit.

Following the crash, the truck immediately burst into flames, witnesses told the the California Highway Patrol. It's unclear what the truck was carrying, and a CHP spokesperson couldn't comment on that detail as of Wednesday morning.

At present, it's still unclear what caused the crash, according to the CHP. Other than the big-rig driver, who has yet to be identified, no other motorists reported injuries in the incident.

A driver in the Outer Richmond District of San Francisco was killed Thursday afternoon, after he collided with a street pole.

According to the San Francisco Police Department, an 80-year-old man was driving near the intersection at 34th Avenue and Geary Boulevard at 2:29 p.m. Thursday when he apparently lost control of his vehicle and struck a pole at the side of the street.

The man was transported to San Francisco General Hospital, where "where he expired," police say.

No other vehicles were involved in the crash, according to police, nor was anyone else injured in the collision.

A man riding a scooter on 101 in San Francisco was killed Wednesday night, when he fell from the the highway to the street far below.

According to California Highway Patrol spokesperson Officer Vu Williams, the scooter rider was "making a sweeping left turn" onto 101 north just south of the Ninth Street exit at 11:23 p.m. Wednesday.

As he made the turn on this elevated stretch of roadway, he apparently lost control and struck the guardrail. The man then fell from the highway to the street below, a distance of around 40 feet.

The man, who has yet to be publicly identified by the San Francisco Medical Examiner's office and was described only as "in his 30s," was pronounced dead at the scene, Williams says.

No other vehicles were involved in the crash, and no other damage or injuries were reported as a result of his fall, Williams says.

A man injured in a multi-vehicle Mission District crash has died, but police still aren't sure if it was the collision, or something else, that killed him.

It was 5:23 p.m. Sunday when a man the Chron describes as "elderly" drove into oncoming traffic at the intersection of 18th and Guerrero Streets.

At least four vehicles crashed as a result, ABC 7 reports. According to San Francisco Police Department spokesperson Officer Carlos Manfredi, the man had suffered an unspecified "medical emergency," likely the reason he drove into traffic in the first place.

He was pronounced dead at the scene, but Manfredi says police still don't know if the man's death was caused by the injuries he sustained in the crash or by the medical emergency, itself.

“It is unclear if he died due to the collision, or the medical condition,” Manfredi told the Ex.

As of publication time, the San Francisco Medical Examiner's office had not publicly identified the dead man, nor did they have any additional details on his cause of death.

KTVU reports that the driver and passenger of the vehicle the deceased man struck suffered minor injuries, and "two others involved were treated for non-life threatening injuries, and are expected to be OK."

Nearly a month after a man was shot and killed while riding BART, it appears the police are no nearer to finding his killer. Will a cash reward help develop a lead to the gunman? That's what one the transit agency is now banking on.

As you likely recall, back on January 9 at 7:49 p.m., a man later identified as 19-year-old Antioch resident Carlos Misael Funez-Romero was shot and killed on a BART train at the West Oakland Station.

According to witnesses, a "disheveled looking man," got on the train at either Rockridge or MacArthur station, then pulled out a gun and shot Funez-Romero multiple times as he sat next to the train door, before fleeing on foot into the West Oakland night.

Since then, reports from BART police have been confusing: The shooting wasn't random! Wait, maybe it was! The shooter and the victim never interacted! Oh, wait, they did! In fact, KRON4 reported Friday, investigators still don't know "what the motive was for the shooting and don’t know what kind of a relationship the suspect and Funez-Romero had, if any."

The issue was complicated when it was revealed that many of the cameras that appear to be mounted on BART's cars are actually fake, including those that might have caught the incident on tape. But they do say that these photos depict the shooter:

And now, via press release, BART has announced that the transit agency is now "offering a reward of up to $10,000.00 through Oakland Crime Stoppers."

According to BART, the money is yours "if a tip leads to an arrest of the murder suspect."

“Someone in the public knows who this guy is and we need their help to bring him to justice,” said BART Police Chief Kenton Rainey says.

“This is an active investigation and detectives are following up on all leads.”

Know something about the shooting? (It doesn't even have to be $10,000 worth, as anything will obviously help BART's crack team of investigators solve the case.) If you do, you can submit an anonymous tip at 510-464-7011, contact BART investigators directly at 510-464-7040, or call Oakland Crime Stoppers at 510-777-8572.

Previously: Man Shot And Killed On BART At West Oakland Station
BART Shooting Victim ID'd As Police Release More Suspect Photos
Shooting Aboard BART In West Oakland Was Not Random, Suspect Still At Large
Police Release Photos Of BART Shooting Suspect, Say It Could Have Been Random After All
BART Shooting Victim ID'd As Police Release More Suspect Photos
BART Shooting Victim And Suspect Had Prior Altercation
Fatal Shooting Shames BART Into Installing More Actual Cameras