Gunshots reported near White House; federal law enforcement investigating

--Spent cartridges apparently found on Constitution, south of the White House, officials said 12 Nov 2011 Shots apparently were fired near the White House on Friday night, possibly in a confrontation between occupants of two vehicles on Constitution Avenue, according to the accounts of federal law enforcement officials. After a broadcast alarm was issued about the incident, a vehicle was found abandoned in the District, near the Roosevelt Bridge a few blocks away, and a weapon believed to be an assault rifle, possibly an AK-47, was found inside, according to a Secret Service spokesman.