Capitol office building reopens after police investigate reports of gunfire

WASHINGTON -- Police briefly sealed off the Capitol Friday and launched a floor-by-floor search of the largest office structure on Capitol Hill after an unidentified caller reported gunfire. More than four hours later, police reopened the building.\n"The search of the Rayburn House Office Building has concluded at this time. The building has reopened for routine business," Capitol Police said, capping a day marked by chaos, confusion and a massive law enforcement deployment.\nPolice said there were no arrests, injuries or confirmation of the gunfire report that had been called in by an unidentified person.