The shooting occurred at 210 E. 102nd St. shortly after 4 p.m.
Officials say a 13-year-old boy suffered a gunshot wound to his shoulder.
He was taken to New York Presbyterian Hospital, and is expected to survive.
Police describe the suspect as a male wearing a black shirt and fled in an unknown direction.
Officials say there are no arrests, and the investigation is ongoing.
----------
* Get Eyewitness News Delivered
* More Manhattan news
* Send us a news tip
* Download the abc7NY app for breaking news alerts
* Follow us on YouTube