A 53-year-old San Francisco man was shot and killed Sunday night, in San Francisco's 23rd homicide of 2015.

According to San Francisco Police Department spokesperson Officer Albie Esparza, a San Francisco man identified by the Chron as 53-year-old James Collins was killed at around 10:40 Sunday night near the intersection of Third Street and La Salle Avenue.

Esparza says that police, who'd received a ShotSpotter alert from the scene, found Collins suffering from "multiple gunshot wounds."

Collins was transported to San Francisco General Hospital, where he succumbed to his injuries.

According to Esparza, shell casings from an AK-47 (a selective fire assault rifle popularly used in TV shows and movies) were found at the scene.

A witness who spoke with the Chron said that he heard everything during the "wild shootout."

β€œIt sounded like maybe 8 to 10 shots from a big gun, like a rifle,...Then there was a pause and a single shot from a handgun, then another pause and a bunch more shots, more than I could count,” the witness said.

Esparza says that police are presently seeking two suspects in the slaying: a man in a a dark gray or black sweatshirt, and another wearing a a white beanie and a white sweatshirt.

It's possible that the suspects fled the scene in a white SUV, Esparza says. He did not have any additional details regarding the suspects or any motive behind the crime.

As always, SFPD is eager to receive public assistance in the case, and asks anyone with information on the shooting to call the SFPD's anonymous tip line at 415-575-4444 or to send a tip by text message to TIP411 with "SFPD" in the message