PHILADELPHIA — Police say they've captured a boy who shot two students at a Philadelphia high school gym.

They say the shooting happened at the Delaware Valley Charter School in north Philadelphia on Friday afternoon.

Police Commissioner Charles Ramsey says the shooter "was captured not too far from his home" but the gun hasn't been recovered. He says it's unclear if the shooting was accidental or intentional.

Authorities say a male student and a female student were shot. Each student was shot in an arm.

The students have been taken to a hospital near the school. Police say they're in stable condition.

A spokesman for the school district hasn't responded to a call seeking comment.

It's the second U.S. school shooting this week. Authorities say a seventh-grader opened fire Tuesday in a New Mexico middle school gym, wounding two classmates.