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.

In the immediate aftermath of the crash of American Airlines Flight 5342 , which was a service from Wichita (ICT) to Washington National (DCA) with 60 passengers and four crew members onboard, grainy CCTV footage of the incident emerged.

An American Airlines jet and an Army helicopter collided over Washington, D.C., Wednesday night. All 67 people aboard the aircraft are presumed dead.

A retired Army helicopter pilot shared insights into what may have caused Wednesday’s deadly mid-air collision over the Potomac River in Washington, DC.

The helicopter involved in the fatal midair collision on Wednesday night may have flown off its approved path, The New York Times reports.

Transgender pilot Jo Ellis is rumored to have been involved in the American Airlines flight and Black Hawk collision.

Rescue crews will return to the Potomac River on Friday morning as they continue searching for victims of Wednesday night’s deadly midair collision.

Officials: Likely no survivors from plane, Army helicopter crash in D.C. A passenger jet and a Black Hawk helicopter collided in midair Wednesday night and crashed into the Potomac River near Reagan National Airport near Washington,

A former Black Hawk helicopter operator has suggested the U.S. military install collision avoidance systems into military aircrafts. On Wednesday

Several victims of a mid-air crash between an American Airlines flight and a military helicopter Wednesday night were identified on Thursday, as officials said they have recovered the passenger jet's black boxes.

An Army Black Hawk helicopter collided with a regional jet near Ronald Reagan Washington National Airport on Wednesday evening, U.S. officials confirmed to ABC News.