While landing at Ronald Reagan Washington National Airport in Washington, D.C., on Wednesday shortly before 9 p.m., American Airlines Flight 5342 collided with an Army Black Hawk helicopter and crashed into the icy Potomac River.

The last major collision of a commercial U.S. airline dates back to 2009, when a Colgan Air incident left 50 dead near Buffalo, New York. Federal regulators tightened safety requirements following the crash, including bolstering aircraft carrier inspection requirements and pilot training hours.

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

A regional American Airlines passenger jet and a Black Hawk military helicopter collided over Washington, D.C., on Wednesday night in the nation's first major commercial airline crash since 2009. There are confirmed fatalities from the collision,

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An American Airlines jet with 60 passengers and four crew members aboard has collided with an Army helicopter while coming in for a landing at Ronald Reagan National Airport near Washington and multip

An American Airlines flight crashed into military Black Hawk helicopter late Wednesday night near Reagan National Airport. Here are the most recent fatal incidents prior to the crash