Investigators are searching for answers after the midair collision that killed 67 people near Washington, D.C.

In the three years before the deadly collision between an Army helicopter and an American Airlines flight near Reagan ...

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.

The stark temperature contrast created by the arctic blast that has gripped the United ... States in recent days and the warm moist air in the Gulf of Mexico intensified the jet stream, a high ...

An American Airlines plane carrying 60 passengers and four crew members collided with an Army Black Hawk helicopter outside ...

"In fact, it's the biggest one with the most deaths associated with it in the United States. And that certainly ... and then re-irradiate it at night." Lower elevation areas like Central Reno ...

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

That's the same flight path that that plane and helicopter crashed last night on. Now, many have been wondering how did all ...

Several passengers and crew were injured when a United Airlines-operated Boeing ... operating as flight UA613 – suddenly dropped in altitude, according to accounts posted on social media.

A 3D rendering shows the approximate altitude and paths of the plane and helicopter moments before the collision.