The wreckage of a military helicopter involved in a mid-air collision with a passenger jet that killed all 67 people on both aircraft was recovered Thursday from the Potomac River, federal officials said.

Crews working at the site of the deadliest aviation disaster in a generation have recovered all 67 victims of the collision between two aircraft over the Potomac River in Washington, DC, officials said Tuesday.

WASHINGTON (7News) — All 67 victims from the midair collision near Reagan National Airport have been recovered, according to Unified Command, but only 66 of them have been positively identified. Officials are waiting on testing results to positively identify the final victim, according to a spokesperson for the Unified Command efforts.

The remains of all 67 victims of last week’s collision between an American Airlines regional flight and a U.S. Army Black Hawk helicopter have been recovered from the Potomac River.