'We don't believe there are any survivors' - DC fire chief

Washington DC fire chief John Donnelly has said despite the work of first responders, "we don't believe there are any survivors" after a plane and helicopter crashed in mid-air over Washington DC's Potomac River.

The American Airlines flight was carrying 60 passengers and four crew members when it collided with a Black Hawk helicopter - carrying three soldiers - as it approached Ronald Reagan National Airport on Wednesday night.