Hazmat and bomb squad crews were searching a home in Costa Mesa where a man died after setting off an explosion.
At least 16 homes in the area were evacuated as a precaution.
According to police, the blast happened a residence in the 3100 block of Bermuda Drive between 7:30 and 8 p.m. Sunday.
Neighbors said that, on Sunday evening, the man who owns the home was lying unresponsive on his front lawn.
An ambulance was called, but he refused to go to the hospital, and instead went back into the house.