The rare circular ice slabs spun, collided and collected in large eddies because of the prolonged cold weather.

D.C. Water is dropping crews and a 14-ton drilling rig just north of Great Falls in Virginia to gather samples for a future ...

The plane, a Bombardier CRJ700, collided in midair with the Sikorsky UH-60 Black Hawk helicopter about 9 pm while on approach ...

The helicopter involved in the fatal midair collision on Wednesday night may have flown off its approved path, The New York ...

An American Airlines passenger plane has crashed into the Potomac River near Reagan National Airport outside of Washington, ...

Leaders from South Dakota have taken to social media to give statements on the deadly crash between a commercial flight and an Army helicopter near Washington, D.C.

“We don’t want it,” said Bierman, who represents the Dranesville District, including the Great Falls community where ... residents drive across the Potomac River to the MGM National Harbor ...

Divers are expected to return to the Potomac River as part of the recovery and investigation after the United States’ ...

Investigators have already recovered the cockpit voice recorder and flight data recorder of the American Airlines jetliner, ...