Get all the news you need in your inbox each morning. Federal aviation investigators vowed earlier in the day that they will find the cause of a horrific collision. NTSB Chairwoman Jennifer Homendy said at a briefing that the agency wants to assure the American public it will "leave no stone unturned in this investigation .

The American Airlines flight was carrying 64 people when it collided with a Black Hawk helicopter near Reagan National Airport.

The American Airlines flight was carrying 64 people when it collided with a Black Hawk helicopter near Reagan National Airport.

A massive search operation is underway after a passenger aircraft carrying 64 people collided midair with a US Army Black Hawk helicopter near Reagan National Airport outside of Washington, DC, according to aviation and defense officials.

A passenger aircraft crashed into the Potomac River near Reagan National Airport outside of Washington, DC, after it collided midair with a helicopter as it approached the runway, according to the Federal Aviation Administration.

None are believed to have survived the Wednesday night collision, which caused both aircraft to plunge into the frigid Potomac River.

American Airlines Flight 5342 from Wichita, Kansas, was attempting to land when the plane and a Black Hawk helicopter collided.

American Airlines Flight 5342 from Wichita, Kansas, was attempting to land when the plane and a Black Hawk helicopter collided.

The military helicopter that collided with a regional jet near Ronald Reagan Washington National Airport, in a crash that killed all 67 people aboard both aircraft, was a UH-60 Black Hawk, considered the “workhorse” of U.

This morning, news has been coming in about a tragic plane crash in Washington. The collision included a passenger plane, and a Black Hawk helicopter.