Aerial view of damage caused by a massive fire in a mostly residential neighborhood in San Bruno, Calif., Friday, Sept. 10, 2010. Fire crews tried to douse the remnants of an enormous blaze and account for the residents of dozens of homes Friday after a gas line ruptured and an explosion ripped through in a neighborhood near San Francisco.(AP Photo/Jeff Chiu)
The San Mateo County coroner has confirmed the deaths of three more people in a pipeline explosion in California, bringing the death toll to seven.
Coroner Robert Foucrault says investigators used DNA to identify 50-year-old Gregory Bullis and his mother, 85-year-old Lavonne Bullis as victims of the blast in the San Francisco suburb.
Gregory Bullis' son, 17-year-old William James Bullis, was identified after an examination of remains found at the family's home in San Bruno.
The state Department of Justice's missing persons unit performed the DNA tests.
Four other people died in the explosion: 44-year-old Jacqueline Greig and her 13-year-old daughter Janessa Greig, 81-year-old Elizabeth Torres, and 20-year-old Jessica Morales.
©2010 The Associated Press. All rights reserved.