A blaze caused by a gas explosion in the San Francisco Bay Area injured at least six people and damaged several homes, fire officials said on Thursday.
Approximately 75 firefighters responded to the scene, USA Today reported.
"All six victims were transported to hospitals - unknown of their status or their injuries," Alameda County Deputy Fire Chief Ryan Nishimoto was cited by USA Today as saying.
At least three buildings on two separate properties were "significantly damaged," and another adjacent property also sustained "minor to major damage on the side that faces where the explosion" occured," Nishimoto added.
"We were sitting in the house, and it just ... everything shook. Stuff fell off the walls, and when we looked at the camera, it was like you were watching a war video," a witness who lived across the street told ABC7 News.
The National Transportation Safety Board said Thursday it is sending a team to investigate.
Construction crew damages underground gas line
Pacific Gas & Electric Company was alerted around 7:35 a.m. that a construction crew had damaged an underground gas line. Workers from the company arrived to isolate the damaged line, but gas was already leaking from various locations.
Workers stopped the gas flow at 9:25, but the explosion happened 10 minutes after the line was shut off, PG&E spokesperson Tamar Sarkissian confirmed.