Investigators searching for wreckage from last week’s deadly midair collision between a US military Black Hawk helicopter and an American Airlines plane near Washington, DC, conducted an overnight scan of the Potomac River where the aircraft fell using advanced imaging technology to map the riverbed and locate debris.

WASHINGTON — The remains of all 67 people killed in the midair crash near DCA last week have been recovered, Unified Command confirmed to WUSA9 on Tuesday. They said 66 have been positively identified.

Salvage crews have recovered the last large pieces of aircraft wreckage from the Potomac River on Thursday and are focusing on collecting small pieces from the crash site where 67 died.

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 U.S. Army Corps of Engineers says crews have successfully taken all major pieces of wreckage from the D.C. plane crash out of the Potomac River. The announcement came Thursday evening, just a day after the remains of all 67 victims killed in the midair collision were recovered and positively identified,

NTSB will examine the debris and recording devices to figure out what went wrong.

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.