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

Officials say the conditions of the Potomac River are complicating recovery efforts of the bodies of the 67 presumed dead in a mid-air collision between American Airlines flight 5342 from Wichita and a military Black Hawk helicopter.

A regional jet crashed into a US Army helicopter, killing 67 people in the deadliest US air disaster in more than 20 years. The DC Fire and EMS Department said that 41 bodies have so far been recovered from the wreckage of the plane crash in the Potomac River.