UPDATED: July 22, 2014 10:15 a.m.
LANHAM, Md. (WNEW) — The U.S. Capitol Visitor Center has reopened after an investigation into a suspicious substance determined the material wasn’t hazardous, police say.
The U.S. Capitol Police closed the Capitol Visitor Center just before 9:30 a.m. Tuesday after a suspicious substance was found in Emancipation Hall. Police advised staff and visitors to avoid the area while police investigated the substance.
Capitol Police said all tests on the substance came back negative and the area in the Visitor Center was reopened about 45 minutes later.