ABC NewsLiveVideoShowsGood Morning AmericaShopGMAInterest Successfully AddedWe'll notify you here with news aboutTurn on desktop notifications for breaking stories about interest? OffOnStream onThe Arlington Fire & EMS said it is currently operating at the Pentagon.ByMeredith DelisoJune 11, 2026, 11:26 AMAuthorities have responded to a "hazardous materials incident" at the Pentagon on Thursday, according to Arlington County fire officials.This is a developing story. Please check back for updates.Popular ReadsIran live updates: Trump says US will hit Iran 'very hard tonight'12 minutes agoKarmelo Anthony sentenced to 35 years for murder in Texas track meet stabbingJun 10, 11:37 AMIsrael conducts strikes in Iran, IDF saysJun 7, 9:43 PMSponsored Content by TaboolaPopular ReadsIran live updates: Trump says US will hit Iran 'very hard tonight'12 minutes agoIsrael conducts strikes in Iran, IDF saysJun 7, 9:43 PMKarmelo Anthony sentenced to 35 years for murder in Texas track meet stabbingJun 10, 11:37 AMTrump booed at Madison Square Garden as he and Mamdani attend Knicks gameJun 8, 10:32 PMABC News Live24/7 coverage of breaking news and live events