The National Transportation Safety Board says it has recovered a cockpit voice recorder and flight data recorder from the American Airlines plane that collided with an Army Black Hawk helicopter near Reagan National Airport late Wednesday.

PMBlack Hawk black box recovered: NTSBThe Black Hawk's black box -- a combined cockpit voice recorder and digital flight data recorder -- has been recovered in good condition, NTSB member Todd Inman said during a briefing.

Sixty-seven people are believed to have died after a passenger plane hit a military helicopter in mid-air near Washington DC's Ronald Reagan airport on Wednesday evening.