Two U.S. officials said on June 11 local time a lockdown and evacuations at the Pentagon were caused by a false alarm. Earlier multiple sources and the local fire department had reported a "hazardous-materials incident" that prompted floor and corridor lockdowns and partial evacuations. A Pentagon spokesperson said building sensors detected an air-quality anomaly, prompting precautionary "shelter-in-place" orders for affected areas; an emergency response team is on site to investigate and suppor

Two U.S. officials said on June 11 local time a lockdown and evacuations at the Pentagon were caused by a false alarm. Earlier multiple sources and the local fire department had reported a "hazardous-materials incident" that prompted floor and corridor lockdowns and partial evacuations. A Pentagon spokesperson said building sensors detected an air-quality anomaly, prompting precautionary "shelter-in-place" orders for affected areas; an emergency response team is on site to investigate and support personnel.