Tests raised questions about whether instruments in an Army Black Hawk helicopter may have led pilots to believe they were at ...

The maneuver might have taken the helicopter out of the direct path of a passenger jet as it was trying to land at Reagan ...

Hearings began on the deadly midair collision between a passenger plane and a Black Hawk helicopter over Washington, D.C., in ...

Crews responded to a dramatic water rescue late Wednesday night after a vehicle plunged into the Potomac River near the Roosevelt Bridge in D.C.

The man who was rescued from the Potomac River has died in the hospital, police confirmed on Monday morning.

MONTGOMERY COUNTY, Md. (DC News Now) — One person was rescued from the Potomac River on Friday, officials said. Officials with the Montgomery County Fire and Rescue Service (MCFRS) said a Swift ...

Two dozen sewage releases were reported in the Potomac watershed during floods, according to the Maryland Department of Environment.

DC's $819M Potomac River Tunnel breaks ground with dual TBMs DC Water breaks ground on a 5.5-mile tunnel under D.C. to capture sewage overflows, aiming to cut Potomac River pollution by 93% by 2030.

The cleanup event aims to improve water quality and protect wildlife habitats in the Potomac River, which supplies drinking water to over five million people.

The plane collided with a helicopter just before it was scheduled to land. This is a developing story and will be updated.

The plane collided with a helicopter just before it was scheduled to land. This is a developing story and will be updated.

A small commercial airliner and a military helicopter collided and crashed into the Potomac River near Reagan National Airport Wednesday evening, D.C. Fire and ...