Divers are expected to return to the Potomac River as part of the recovery and investigation after the United States’ deadliest aviation disaster in almost a quarter century.

We are now at the point where we are switching from a rescue operation to a recovery operation,” said John Donnelly, the fire chief in the nation’s capital.

WASHINGTON — More than a dozen bodies have been pulled from the Potomac River after a plane collided with a military helicopter in midair and crashed into the Potomac River near Ronald Reagan Washington National Airport (DCA) on Wednesday night.