Cops dragged two high schoolers out of an East Harlem school after the teens were spotted running into the building following a shooting which left a 14-year-old boy wounded, said police.

A bullet hit the victim in the arm at about 9:45 a.m. as he walked outside the Wagner Houses on Second Avenue, near East 123rd Street, police said.

He was taken to Harlem Hospital, where is listed in stable condition.

The assailants fled into Coalition High School For Social Change, where they attend classes, police added. The school is on East 120th Street at First Avenue.

School administrators alerted police and the school, as well as an adjoining middle school, was put on temporary lockdown, said officials. Students ordered to remain in their rooms while cops canvassed classrooms for the two suspects, sources said.

The teens were found inside a third floor classroom and taken into custody without incident, sources added.

A search of the building failed to turn up the weapon, sources said.

The teens are being questioned in connection with the shooting at the 25th Precinct, police officials said.

It wasn’t immediately known if the victim had been targeted and what sparked the gunplay.