Nearly 50 NTSB investigators will be searching the Potomac River for evidence to piece together what led to Wednesday night's deadly midair collision between an American Airlines regional jet and an Army Black Hawk helicopter.

Search efforts continue after an American Airlines plane from Wichita, with 64 people on board, collided with an Army helicopter near Washington, D.C., and crashed into the Potomac River.

As recovery operations continue after the midair collision between an American Airlines flight and an Army helicopter, NTSB investigators say they have recovered the two black boxes from the plane and have searched "all accessible areas" of the Potomac River.

No survivors found in crash between Black Hawk helicopter and American Airlines jet over Potomac River near DC

Police boats have returned to the Potomac River as part of the recovery and investigation after the United States’ deadliest aviation disaster in almost a quarter century. Law enforcement officials told The Associated Press that more than 40 bodies have been pulled from the river as the massive recovery effort continues Friday.

Government agencies are working to understand the cause of a deadly crash between a passenfer plane and military helicopter in Washington D-C last night.The Nat

Several figure skaters, along with their coaches and families, were traveling on an American Airlines plane that crashed into an Army helicopter near Ronald Reagan National Airport in Washington D.C. on Wednesday evening. The plane ended up crashing into the Potomac River.

In the United States, an Airlines regional passenger jet and a Army Black Hawk helicopter crashed into the Potomac River after a midair collision near Reagan Washington National Airport. According to the Washington Post multiple bodies had been pulled from the water. No survivors had so far been found.

An American Airlines regional jet went down in the Potomac River near Ronald Reagan Washington National Airport.

Even in peak flying conditions, the airspace around Reagan Washington National Airport can challenge the most experienced pilots.

Divers are expected to return to the Potomac River as part of the recovery and investigation after the United States’ deadliest aviation disaster in almost a quarter century.