The NYPD needs help finding a man who they say shot someone over a chain.

It happened Thursday around 11:40 a.m. on East 121st Street in Harlem.

Police say the victim was shot in the left shoulder and right leg when he fought off the attacker, who attempted to steal a chain from his neck.

The man was taken to the hospital for treatment.  

The two images of the suspect seen above were taken from surveillance video. He's thought to be about 5 feet, 9 inches tall.

Anyone with information on the case should contact the Crime Stoppers hotline at 1-800-577-TIPS, or text CRIMES and then enter TIP577, or visit www.nypdcrimestoppers.com.