A commercial regional jet carrying 64 people crashed in the Potomac River near Ronald Reagan Washington National Airport outside Washington on Wednesday night after it collided midair with an Army Black Hawk helicopter.The Federal Aviation Administration said that an American Airlines flight from Wichita, Kansas, had crashed on Wednesday evening, and Washington's fire emergency department said the plane had crashed into the river. American said in a statement that 60 passengers and four crew members had been on board.There was a massive emergency response on a bank of the Potomac late Wednesday, as emergency workers from across Virginia and Maryland joined in responding to the crash. Helicopters crisscrossed the night sky, and police boats were massed in the water near the military base on the east side of the river. Lights from emergency vehicles could be seen up and down both banks.Temperatures in the Washington area were expected to drop below freezing overnight, putting any survivors in the water at risk.An Army official said that the helicopter, an H-60 Black Hawk, was one of its own and was flying with three crew members. He could not confirm their condition. The helicopter was operating out of Fort Belvoir in Virginia, the Army said in a statement. It was not clear whether it was departing from or returning to Fort Belvoir.A total of 19 bodies have been recovered from the Potomac River so far. These are the last 10 deadly airline crashes to occur in the U.S., according to data from the U.S. National Transportation Board and the Flight Safety Foundation's Aviation Safety Network: 2009A Colgan Air turboprop crashed on approach to landing in Buffalo, New York, killing all 49 people on board and one person on the ground. 2006A Comair regional jet overran the runway when taking off from Lexington, Kentucky, and crashed, killing 49 of the 50 people on board. 2005 A Chalk's Ocean Airways turboprop crashed after takeoff from Miami, Florida, killing all 20 people on board. 2004A Corporate Airlines turboprop crashed on approach to landing in Kirksville, Missouri, killing 13 of the 15 people on board. 2003A US Airways Express turboprop crashed after takeoff from Charlotte, North Carolina, killing all 21 people on board.November 2001In November, an American Airlines jet crashed after departing from John F. Kennedy International Airport in New York, killing all 260 people on board and five people on the ground.September 11, 2001A hijacked American Airlines jet departed from Boston and crashed into the World Trade Center building in New York, killing all 92 people on board. Around 1,600 people also died on the ground. A hijacked United Airlines jet that departed from Boston also crashed into the World Trade Center, killing all 65 people on board. About 900 people were killed on the ground. A hijacked American Airlines jet that departed from Washington-Dulles International Airport crashed into the Pentagon, killing all 64 people on board. Around 125 people died on the ground. A hijacked United Airlines jet that departed from Newark, New Jersey, crashed into a field in Pennsylvania, killing all 44 people on board.(With inputs from Reuters)