Multiple areas inside the Pentagon were placed under lockdown and partial evacuation orders on Thursday after officials detected what was described as a possible air quality issue, according to CNN.
According to the report, the Pentagon Force Protection Agency's hazardous materials team is leading the response with support from the Arlington County Fire Department. Emergency crews are conducting additional testing that could take several hours.
CNN reported that floors two through five in several corridors were locked down. Sources also said some law enforcement personnel were seen wearing gas masks and chemical protective equipment as the investigation continued.
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JUST IN - Multiple floors and corridors inside the Pentagon have been locked down and others are being evacuated due to "hazardous material incident" with Hazmat team responding pic.twitter.com/qJE3E3GFWK
— Insider Paper (@TheInsiderPaper) June 11, 2026
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