An American Airlines regional jet went down in the Potomac River near Washington, D.C.'s Ronald Reagan Washington National Airport after colliding with a U.S. Army Black Hawk helicopter on Wednesday night,

An American Airlines regional jet went down in the Potomac River near Ronald Reagan Washington National Airport.

7:30 a.m.: Local and federal officials hold a news conference at Reagan National Airport, where they say that they do not believe anyone has survived the crash. Efforts are switching from rescue to recovery, they say, adding that 28 bodies have been recovered to this point.

D.C. authorities give updates on rescue efforts after a passenger jet collided with a military helicopter on Jan. 29.