At least 41 bodies have been recovered from the icy waters of the Potomac River. National Transportation Safety Board investigators have recovered the cockpit voice recorder and the flight data recorder from the crashed aircraft,

Both of the flight data recorders – known as black boxes – from the passenger aircraft that collided with a military helicopter at DCA has been recovered from the Potomac River, authorities told CNN. The two devices will now be taken to labs to examine their contents.

Data retrieved from an investigation into a collision last week between an American Airlines regional passenger jet and a U.S. Army helicopter over the Potomac River in Washington that killed 67 people will be released on Tuesday,