An American Eagle flight and a military helicopter collided over the Potomac River near Reagan National Airport Wednesday night.

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

Officials say the conditions of the Potomac River are complicating recovery efforts of the bodies of the 67 presumed dead in a mid-air collision between American Airlines flight 5342 from Wichita and a military Black Hawk helicopter.