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.

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.

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.