Divers return to US river for plane crash recovery and investigation

In this image provided by the US Coast Guard, wreckage is seen in the Potomac River near Ronald Reagan Washington National Airport (AP)

Divers are expected to return to the Potomac River as part of a recovery and investigation after a mid-air collision killed 67 people in the US’s deadliest aviation disaster in almost a quarter of a century.

Investigators have already recovered the cockpit voice recorder and flight data recorder of the American Airlines plane that collided with an Army helicopter as the plane was landing on Wednesday night at Ronald Reagan National Airport next to Washington DC.