ARLINGTON, Va. — The remains of all 67 victims of last week’s midair collision of an American Airlines flight and an Army helicopter near the nation’s capital have been recovered, authorities said Tuesday.

The chief medical examiner is still trying to positively identify one set of remains, officials said in a news release.

“Our hearts are with the victims’ families as they navigate this tragic loss,” they said in a joint release from the city and federal agencies involved, including the U.S. Army Corps of Engineers, Navy dive teams and Washington, D.C., police and fire crews.

The news came as crews worked to try to recover the cockpit and other parts of the jetliner from the Potomac River. Officials said their work might depend upon the wind and tidal conditions in the river, where the aircraft crashed last Wednesday night after colliding as the plane was about to land at nearby Ronald Reagan National Airport, killing everyone on board the two aircraft.

Throughout the day, crews could be seen lifting large pieces of the plane from the river.

— The Associated Press