An American Airlines plane with 64 people on board collided with an Army helicopter over Washington, D.C., and crashed into the Potomac River.

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.

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

In a briefing that recalled his most extreme first term remarks, President Trump said without any evidence that diversity initiatives caused the midair collision.

According to Secretary of Defense Pete Hegseth, the Army helicopter was on an "annual proficiency training flight" and the three soldiers on board had night vision goggles.

A U.S. Army Black Hawk helicopter crash in Washington D.C., resulting in 67 deaths, is under investigation. President Trump highlighted altitude violations as a potential cause. Defense Secretary Pete Hegseth confirmed elevation issues,

A regional jet carrying 64 people collided with an Army Black Hawk helicopter. Reagan National Airport grounded all flights.

It was a fairly experienced crew that was doing an annual required night evaluation,” the defense secretary said.

An American Airlines plane and a U.S. Army helicopter collided near Reagan National Airport and crashed into the Potomac River, according to officials.

An American Airlines regional jet went down in the Potomac River near Washington, D.C.'s Ronald Reagan Washington National Airport after colliding with a U.S. Army Black Hawk helicopter on Wednesday night, with no survivors. Sixty-four people were on board the plane, which departed from Wichita, Kansas. Three soldiers were on the helicopter.

A timeline of the tragic collision between a commercial plane and a Black Hawk helicopter over the Potomac River, with insights into the ongoing investigation.