Three Los Angeles County sheriff’s deputies were killed in a "horrific incident" at a law enforcement training facility, Attorney General Pamela Bondi said. The victims appeared to be handling explosives when there was a blast, sources told ABC News. The facility, a Special Enforcement Bureau compound, also houses the bomb squad.

At least three people have died in an explosion at a Los Angeles County Sheriff’s Department’s training facility on Friday morning, according to US Attorney General Pam Bondi.