Three members of the arson and explosives unit of the Los Angeles County Sheriff’s Department have been killed in a blast at the department’s training facility.

Attorney General Pam Bondi says it "appears to be a horrific incident" at a law enforcement training facility.

An explosion at a Los Angeles County Sheriff's Department training facility has killed three deputies, local media reported on Friday, though officials have yet to confirm any deaths. A spokesperson for the Los Angeles Sheriff's Department said an explosion occurred at the Biscailuz Center Academy Training in East Los Angeles.