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.

We are now at the point where we are switching from a rescue operation to a recovery operation,” said John Donnelly, the fire chief in the nation’s capital.

ARLINGTON, Va. (AP) — At least 28 bodies were pulled from the icy waters of the Potomac River after an American Airlines jet carrying 60 passengers and four crew members collided with an Army helicopter while landing at Ronald Reagan National Airport near Washington, officials said Thursday.