LOS ANGELES (AP) — Prosecutors won't bring criminal charges against a Los Angeles police officer who shot and killed a 14-year-old boy in 2016.

The Los Angeles County district attorney's office says Officer Eden Medina acted in self-defense and used reasonable force when he shot Jesse Romero.

The shooting sparked protests in the city.

Police say Romero and others were spraying graffiti and ran when officers approached. Investigators say a witness saw Romero fire a gun in the officers' direction.

An attorney for Romero's family has said the boy was throwing away the gun and couldn't have been armed when he was shot.