An explosion at a Los Angeles County Sheriff's Department training facility Friday left three deputies dead, officials said.The blast was reported just before 7:30 a.m. Pacific and occurred at the Biscailuz Center Training Academy in East L.

At least three people are dead following an explosion early Friday morning at a Los Angeles County Sheriff Department facility.

Multiple people are dead after an explosion at an LASD facility on Friday morning around 7:30 a.m. local time. The Federal Bureau of Investigation's Los Angeles office is investigating.