Boy, 15, stabbed outside NYC high school after group surrounds him, asks what gang he’s in

A 15-year-old boy was stabbed in the leg outside his East Harlem high school after a group of thugs surrounded him and asked what gang he belonged to, according to cops and school safety sources.

The violent crew approached the teen not far from the Manhattan Center for Science and Mathematics on Pleasant Avenue near East 115th Street around 10:45 a.m., the sources said.

One of the suspects asked him which gang he belonged to before stabbing him in the leg, the sources said. 

The teen was taken to Harlem Hospital, where he was listed in stable condition, cops said. 

No arrests had been made by the afternoon. 

The incident comes days after an innocent 14-year-old boy was shot in the ankle outside Tottenville High School in Staten Island, cops said.

A 16-year-old boy was also busted with a loaded gun and razor blade at Long Island City High School on Monday morning, authorities and sources said.

Earlier this month, a 15-year-old boy was stabbed by a new classmate near the Bronx School for Law Government and Justice in an apparent beef over a dance video, cops and sources said.