Police reportedly negotiating with suspect in Capitol Hill bomb threat

U.S. Capitol Police on Thursday afternoon continue to a negotiate with a suspect who says he as active bomb inside of his vehicle.

The incident began at about 9:15 a.m. ET, with negotiations continuing through the afternoon. 

The suspect is in a pickup truck outside the Library of Congress, which is considered part of the several-acre Capitol Hill complex. 

Police officers initially said they were "responding to a suspicious vehicle" near the library, near the Cannon House Office Building, which has been evacuated. 

The nearby Supreme Court building has also reportedly been evacuated and streets are blocked off.

Capitol Police Chief J. Thomas Manger told reporters that a man drove the black pickup onto the sidewalk in front of the library's Jefferson Building and told an officer he had a bomb. 

"My negotiators are hard at work to try to have a peaceful resolution to this incident," said the chief. The suspect, who is from North Carolina, is reportedly communicating with negotiators via dry-erase board. 

FBI, Capitol Police, and MPD are all on the scene and, per the AP, have snipers in place. 

Lawmakers are on August recess and not on Capitol Hill. However, staffers and others could still be working within the complex.