Investigators analyze flight data to understand the crash between an American Airlines jet and a military helicopter and exactly what was going on before disaster struck.

The Associated Press is providing live video of the scene of the plane crash near Washington’s Reagan Airport:

Ronald Reagan Washington National Airport has the busiest runaway in the US, with an average of 819 takeoffs per day – which experts say likely contributed to Wednesday’s air disaster. The airport – also known as DCA – also has two other runways,

South Holland police ultimately had to clear out trustees, neighbors, and the news media after allies and critics of Thornton Township Supervisor Tiffany Henyard let their fists speak for them.

The airspace around Ronald Reagan Washington National Airport has long been problematic due to heavy military and commercial flight activity in the nation’s capital, according to industry insiders.

Ronald Reagan Washington National Airport (DCA) services both military helicopters and passenger planes every day.

There was no immediate word on casualties, but all takeoffs and landings from the airport near Washington have been halted.

Leaders across the D.C., Maryland, and Virginia region, as well as federal lawmakers, are reacting to the tragic American Airlines plane crash near DCA.

DCA Ronald Reagan Washington National Airport has shut down and The Federal Aviation Authority has confirmed a American Airlines Flight operated by PSA Airlines collided mid-air with a Blackhawk Sikor

A small aircraft is down in the Potomac River near Ronald Reagan Washington National Airport and fireboats were on the scene, the Washington fire department said. The airport said late on Wednesday that all takeoffs and landings were halted at the airport as emergency personnel responded to an aircraft incident.

Ronald Reagan Washington National Airport is closed, according to an FAA alert posted Wednesday night. A ground stop will prevent planes from landing at the airport through at least 5 a.m. Thursday morning,