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

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.

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