
WASHINGTON D.C. ~ Firefighters responded to a “hazardous materials incident” at the Pentagon late Thursday morning, triggering an evacuation of personnel from multiple parts of the building.
The evacuation was done out of precaution after “sophisticated systems” at the Pentagon detected “air quality issues” in the building. Multiple floors and corridors were also locked down, according to CNN.
Emergency responders were seen wearing gas masks inside the building, with Arlington County Fire Department and Pentagon Force Protection Agency Hazmat Team working jointly on the response.
“ACFD units, including our Hazardous Materials Team, are currently operating at the Pentagon in support of PFPA’s Hazmat Team during a hazardous materials incident,” the department wrote on X.
Stay tuned for more developments on this story.
ACFD units, including our Hazardous Materials Team, are currently operating at the Pentagon in support of PFPA’s Hazmat Team during a hazardous materials incident. pic.twitter.com/7qzOzbwh8W
— Arlington Fire & EMS (@ArlingtonVaFD) June 11, 2026












