Washington D.C. Mayor Muriel Bowser provides an update on the search ... an American flight and a military helicopter over the Potomac River Wednesday night. Zelenskyy ready to exchange presidency ...

Eighteen bodies were reportedly removed from the Potomac River following the Wednesday, Jan. 29, crash between an American Airlines regional passenger plane and a helicopter.

supported by fire departments and police departments from across the metropolitan region are executing a rescue operation in the Potomac River,” Washington, DC, Mayor Muriel Bowser said Thursday.

Boats work the scene in the Potomac River near Ronald Reagan Washington National ... District of Columbia Mayor Muriel Bowser ...

There was no immediate confirmation of any casualties, but surviving an extended submersion in the river would be difficult ... D.C. Mayor Muriel Bowser declined to comment on the specifics ...

Washington, D.C., Mayor Muriel Bowser spoke with CBS News' Nicole ... Crews are still working on recovery efforts in the Potomac River, officials don't believe there are any survivors.