UPDATE: The Rochester Police Department has canceled the alert for Isaiah Cooper, as of 6:34 p.m.

ROCHESTER, N.Y. (WROC) — Rochester police announced they are searching for a missing child — 18-year-old Isaiah Cooper — from Rochester who is believed to be suicidal and in need of medical attention.

Witnesses told police that Cooper was last seen on Lexington Avenue in the city at 8:50 p.m. Wednesday, August 10.

Cooper is described as a black male standing at 5’10” and weighing 155 pounds. He has brown hair and brown eyes. He was last seen wearing a black shirt and sweatpants and carrying a backpack.

Police encourage anyone with information on his whereabouts are encouraged to call 911.