UPDATE: 5:00 p.m.
Police say they did not find a bomb in the vehicle but possible bomb-making materials were collected from it.
Authorities are trying to learn what led the man, identified by law enforcement officials as 49-year-old Floyd Ray Roseberry of North Carolina, to drive onto the sidewalk outside the Library of Congress and make bomb threats to officers.
UPDATE: 2:10 p.m.
A man who claimed to have a bomb in a pickup truck near the Capitol has surrendered to law enforcement after an hourslong standoff that prompted a massive police response and the evacuations of government buildings and businesses in the area.
Police don't immediately know whether there were explosives in the vehicle.
Authorities were searching the truck in an effort to understand what led the man, identified by law enforcement officials as 49-year-old Floyd Ray Roseberry of North Carolina, to drive onto the sidewalk outside the Library of Congress and make bomb threats to officers.
UPDATE: 11:25 a.m.
(ABC ) -- Capitol Police Chief J. Thomas Manger said in a press conference that negotiations are still ongoing to have a "peaceful resolution" and the suspect's motives were unknown.
The suspect told responding police he had a bomb, and responding officers said he had what appeared to be a detonator in his hand, Manger said.
Police negotiators are said to be communicating with him as he writes notes and shows them to authorities from inside the truck.
ORIGINAL STORY
WASHINGTON (AP) � Police are investigating a report of a possible explosive device in a pickup truck outside the Library of Congress on Capitol Hill and have evacuated multiple buildings on the sprawling Capitol complex.
That’s according to two law enforcement officials who’ve spoken on condition of anonymity to The Associated Press. U.S. Capitol Police say officers are “responding to a suspicious vehicle near the Library of Congress� and that it's an “active bomb threat investigation.�
The officials say investigators on the scene a working to determine whether the device is an operable explosive and whether the man in the truck is holding a detonator. Police are sending snipers to the scene.
