Three people have been killed in an explosion at a police training facility in Los Angeles. The incident happened at Biscailuz Center Academy Training at approximately 7.25am local time (12.30pm UK), the Los Angeles Sheriff’s Department confirmed.

Senior law enforcement officials said the LASD bomb squad responded to a garage in Santa Monica yesterday, where at least one grenade was found. It was transported to the training facility, where the deputies were working to render it safe,