For the third-straight day, investigations into last week's deadly explosion at a Los Angeles County Sheriff's Department training facility were centered in Marina del Rey on Wednesday.

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,

An ongoing suspicious device investigation in Marina del Rey is connected to the explosion that killed three detectives last week, the Los Angeles County Sheriff's Department confirmed. AIR7 flew over the active search was active in the 4200 block of Via Marina on Tuesday evening.