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

New footage has captured the moment a passenger plane and military helicopter collided above Washington DC, as Donald Trump suggested the chopper was “flying too high by a lot”.

All 67 people aboard the American Airlines jet and Army helicopter are feared dead in what is likely the worst U.S. aviation disaster in almost 24 years, officials said Thursday.

An American Airlines regional passenger jet and a U.S. Army Black Hawk helicopter collided midair and crashed into the Potomac River near Reagan Washington National Airport on Wednesday night. Officials have not provided a death toll but said all passengers and crew on both flights were feared dead.

The National Transportation and Safety Board holds a news conference on Feb. 4 about data retrieved from the deadly aircraft collision over the Potomac River.

Investigators with the National Transportation Safety Board are using parts of the wreckage from the deadly plane-helicopter collision in Washington, D.C., to begin to understand what happened. CBS News' Kris Van Cleave reports.

The NTSB said they would not be holding any press briefings until later in the week, in part because investigators need the Black Hawk recovered from the river to proceed. That is