Pentagon on lockdown, hazmat crews rush in over ‘hazardous materials incident’

The Pentagon is on lockdown Thursday as emergency workers respond to the Department of War’s headquarters for a “hazardous materials incident,” Arlington County Fire and EMS said in a post to X.

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“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,” it said.

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Building systems detected an “air quality issue,” which prompted a shelter-in-place order, Pentagon spokesman Sean Parnell said in a statement.

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“The Pentagon has sophisticated systems to ensure the safety of the building and its occupants,” Parnell said. “Those systems have detected an air quality issue necessitating precautionary measures until we determine its significance.”

“The Department is executing standard protection protocols, including a shelter-in-place order for the affected area. Response teams are in place and ready to support building occupants,” he added.

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