A man was killed and another injured Sunday, following a bar brawl on a troubled block in the Tenderloin.

According to San Francisco Police Department spokesperson Sergeant Michael Andraychak, it was 2 a.m. Sunday when patrons leaving a bar on the 900 block of Geary Street, which is between Larkin and Polk Streets, "became involved in a physical fight."

After "the dispute had subsided," Andraychak says, a black BMW pulled up to the crowd.

"The suspect exited the car and fired several shots...One victim, an adult male, died at the scene."

A second man was also struck, Andraychak says, and was hospitalized with non-life-threatening injuries. He remains in stable condition as of this morning, according to police.

One area resident, Michelle Matheus, tweeted that she heard at least six gunshots during the incident.

According to area resident Rob Blumberg, he witnessed a group running from the scene of the shooting, and heard at least one of them say "hide the hammer." (According to the Urban Dictionary, "hammer" is a slang term for a firearm, "used mainly in the south.")

The deceased man, a spokesperson from the San Francisco Medical Examiner's Office says, has yet to be publicly identified due to family notification issues.

It's unclear if witnesses have confirmed that the gunman was involved in the earlier altercation, and a call to SFPD to confirm that detail as well as those provided by Matheus and Blumberg was not returned as of publication time.

That area of Geary, especially near the intersection with Polk, has been the site of numerous deaths over the years. In 2011, a man was shot and killed inside Jebena Cafe, then located on that corner. In 2014, 40-year-old Sausalito resident Matt Sheahan was stabbed to death in a hotel on that same block, and this January, an altercation inside a store on that block left one man dead.

Police did not have any additional information on the suspect in this current case to provide at this time, Andraychak says. If you know anything about the case, he asks that you call SFPD's Anonymous Tip Line at 415-575-4444 or to text a tip to TIP411 with SFPD at the beginning of the message.