Philadelphia police have released video of a suspected gunman who remained at large after shooting a restaurant employee in a Sunday evening altercation.

Police said a 19-year-old Church’s Chicken employee was in stable condition after being shot multiple times by a restaurant customer around 5:30 p.m. on Sunday at the restaurant’s location on the 3600 block of North Broad Street.

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“We believe the offender was inside eating at which time he became involved in a verbal altercation with an employee,” Police Capt. Nicholas Brown said to CBS. “The offender produced a large handgun and fired, striking the complainant several times.”

Police said that the suspect may have become angry when restaurant workers began cleaning nearby tables as he was eating, NBC reported.

Police described the suspect as a black man between the ages of 50 and 60 who was wearing a black Fedora hat, glasses, a black trench coat and black pants.

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Police told CBS that the man was last seen walking south on Broad Street.

Police encouraged anyone with information to call 215-686-8477 or text a tip to 773847.