Investigators who are looking into the deadly explosion at the LA Sheriff’s Department facility served a search warrant at a Marina del Rey location.

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

It was not immediately clear what caused the blast at the Los Angeles County Sheriff’s Department’s Biscailuz Training Academy center. No one else was injured, officials said.

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,

Investigators served a search warrant on Monday morning, July 21, on the 13900 block of Marquesas Way in Marina Del Rey in connection to an explosion that killed three deputies at a Sheriff’s Department facility on Friday, July 18, authorities said. That stretch of Marquesas Way holds apartment complexes and some businesses.

Eklund, who attended school in Apple Valley, was among three Los Angeles deputies killed during a Friday morning explosion.

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