Washington D.C./IBNS, Jan. 30 -- An American Airlines Flight carrying 64 people collided with an Army chopper with three soldiers onboard midair near the Ronald Reagan Washington National Airport and both crashed into the Potomac River of Washington D.C. on Wednesday, media reports said.

Eighteen bodies have been recovered so far. Many feared dead while no official confirmation has arrived yet.

The effort to rescue people from the river is underway.

About 300 first responders are searching for the bodies in the freezing river, said DC Fire chief John A. Donnelly.

All airport entrances have been closed.

Washington DC mayor Muriel Bowser said she couldn't provide any timeline for the rescue operation and first responders would be on th...