USCP Chief Tom Manger said authorities seized on a black pickup truck early Thursday that had been driven on the sidewalk outside the Library of Congress building by a man claiming to have an explosive device.
When approached by officers, the driver told officers that he had a detonator in his hand, Manger said.
The chief said department negotiators have been communicating with the driver in an effort to bring "a peaceful resolution to this incident."
TVNL Comment: This is still ongoing. Check back for updates.