Fire officials are investigating reports that sarin, a dangerous chemical, might have been sent to a Facebook mailing facility in Menlo Park, Calif., officials said Monday.

Wright-Patterson Air Force Base personnel tested their emergency-response procedures during a simulated hazardous-materials exercise.

A public affairs officer with the FBI said that the Abilene Fire Department's HAZMAT team conducted a field test. The test showed negative results for any hazardous materials in the letter.

A Facebook spokesperson said there were no dangerous substances found after a hazmat situation at the company's headquarters in Menlo Park prompted evacuations.

For a dozen days, Carl Goldman's world was reduced to a 20- by 30-foot containment room, and his only visitors came bearing coronavirus testing kits and bottles of Gatorade while dressed head to ...

Representatives from the largest operational area in the nation’s third largest state gathered Wednesday, July 28, to participate in the mock detonation of a 10-kiloton improvised nuclear device ...

HAZMAT instruments used by first responders in the county's operational area stream information to the Internet, where officials and subject-matter experts can view it and work together to ...