Three Los Angeles County sheriff’s deputies assigned to the arson explosives detail were killed in an explosion at a law enforcement training facility.

A veteran investigator, a respected mentor and a skilled technician — the t hree arson investigators killed in an explosion at the Biscailuz Center in East LA were remembered as the “best of our department” by Los Angeles County Sheriff’s Department leaders.

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.