The leak in Hayward, Calif., started after a construction crew struck a Pacific Gas and Electric underground gas line, according to the utility.

A home security camera captured the moment a house suddenly exploded in a California residential neighborhood. Authorities say earlier in the day, a contractor struck a gas line while doing road work in the area.

A powerful gas explosion rocked Hayward, California, on Thursday afternoon, destroying a home and injuring six people. Two individuals remain missing following the blast, which occurred shortly after construction crews reportedly damaged gas lines.