Police on Tuesday arrested a 14-year-old boy for the shooting death of a 16-year-old girl who was struck by a stray bullet as a fight between two rival gangs at a Bronx school devolved.

A boy in the Bronx fired three shots into a crowd, most likely aiming at another boy who had punched him, the police said. One bullet struck Evette Jeffrey, 16, in the head, killing her.