SAN FRANCISCO — A gas explosion set off a major fire in a San Francisco Bay Area neighborhood on Thursday after obliterating at least one home, blowing out windows and shaking nearby houses. Six people were taken to hospitals for injuries, fire officials said.

The blast reportedly happened at Chemring Countermeasures facility near Salisbury at around 5.30pm today with police, fire and ambulance crews racing to the scene

Police and firefighters reportedly swarmed a military factory near Salisbury on Thursday evening following an incident. Chemring Counter Measures was "rocked by an explosion", UKNIP reports, which prompted emergency services to attend the scene.

An annual generator stress test gone awry Monday caused an explosion to boom from the belly of Fox Tower, prompted a building-wide evacuation and vented smoke from the 27-story commercial skyscraper into the downtown Portland air.

To date, the manufacturing company has received 26 reports of the products catching fire and exploding. In 16 cases, consumers were left with second-degree burns.

Fire crews were responding to a large fire in Hayward on Thursday morning, sending a large plume of smoke into the sky, according to media reports. Six people were injured in the fire, the Alameda County Fire Department told media outlets.

A 2-alarm fire this week landed a person in the hospital and burned four apartments after an explosion went off in a fourplex in Southeast Portland’s Centennial neighborhood.

The Alameda County Fire Department is responding to a possible explosion and fire in Hayward on Thursday morning, according to a department spokesperson.