The US Capitol Police were looking into a strange substance on a street close to the Capitol and the Republican National Committee headquarters, according to a statement from the police.
NBC News said that containers of blood were sent to the committee, according to three people who knew about it. But they didn’t have any other information.
The police have closed First Street SE between C and D streets and told people to stay away from that area.
This news story is still being updated. Come back later for more information.
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Police looking into a strange chemical close to US Capitol
