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.

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

The mangled remains of the Black Hawk helicopter involved in last week’s deadly midair plane crash in DC were pulled out of the Potomac River Thursday, the National Transportation Safety Board announced.