U.S. Park Police had to call in the bomb squad last night and closed several streets around the National Mall after they spotted a suspicious vehicle.
Police now say that vehicle contained car batteries wired to propane tanks. It also contained a generator with wires attached to it in the bed of the truck. Police say the truck is owned by 66-year-old James Patock of Arizona.
Police also found firearms and ammunition inside Patock's trailer.
He's being charged unregistered ammunition and firearms offenses.