Authorities say a Los Angeles police reserve officer has shot and killed his teenage son in self-defense during a confrontation in their home.

The shooting was reported Thursday evening near Monrovia.

The names of the officer and his son weren't immediately released.

Sheriff's Department spokesman Deputy Ed Hernandez says the shooting was in self-defense. He says the officer opened fire after the teenager attacked him.

He says the case is under investigation and didn't provide any other details.