SAN BRUNO, Calif. (AP) - Search crews with dogs are going house to house in the neighborhood near San Francisco where dozens of homes were destroyed in an explosion and fire.
Officials said this morning that at least six people were killed, but they then revised that number to four. They say there could be more casualties.
Fire crews are still trying to put out the last remnants of the enormous blaze.
In addition to those who were killed, at least 50 people were hurt, with three suffering critical burns.
Pacific Gas and Electric says a steel gas pipe ruptured about three feet underground, but that crews haven't been able to determine the cause of the rupture or the explosion because they can't get close enough.
(Copyright 2010 by The Associated Press. All Rights Reserved.)
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