Washington, D.C., Mayor Muriel Bowser is holding a press conference updating the public on rescue efforts after a military helicopter collided with a civilian airliner above the Potomac River. “Tonight,

A pilot's theory about the cause of the crash between an American Airlines jet and a military helicopter has quickly gone viral online.

Sixty-seven people died in a collision between a Bombardier CRJ700 regional jet operated by PSA Airlines and a military Black Hawk helicopter.

Washington, DC Mayor Muriel Bowser has confirmed that “both aircraft are in the water” and 64 people were flying in the American Airlines aircraft and three were aboard the military helicopter that collided mid-air.

Air traffic controller audio TIME retrieved from LiveATC.net revealed what happened moments before the collision. The tower had cleared the plane for landing on Runway 33, but just seconds before the crash, an air traffic operator asked the helicopter—with radio call sign PAT 25—if the commercial jet—referred to as the CRJ—was in sight.

Watch highlights from the deadly American Airlines and Blackhawk plane crash including news conferences, Trump briefing

Russian ice-skating coaches and former world champions Yevgenia Shishkova and Vadim Naumov were on board the plane that crashed into the Potomac River after a mid-air collision near Reagan Washington National Airport.

Hundreds of emergency responders were searching the waters of the Potomac River, after a passenger plane and a military aircraft collided near Virginia’s Reagan National Airport on9.According to the Federal Aviation Administration (FAA) “a PSA Airlines Bombardier CRJ700 regional jet collided in midair with a Sikorsky H-60 helicopter while on approach to Runway 33 at Reagan Washington National Airport around 9 pm local time.

The Federal Aviation Authority has confirmed US Army Blackhawk helicopter and an American Airlines passenger plane were involved in a mid-air collision.

The incident involved a PSA Airlines Bombardier CRJ700 regional jet and a Sikorsky H-60 helicopter, the FAA said

An American Airlines jet with 60 passengers and four crew members aboard collided Wednesday with an Army helicopter while landing at Ronald Reagan National Airport near Washington, prompting a large search-and-rescue operation in the nearby Potomac River.

Officials say there are no survivors among the 67 passengers on the aircrafts that collided above Washington, D.C.