The National Transportation Safety Board is an independent federal agency tasked with examining serious transport-related accidents.

The U.S. Federal Aviation Administration is indefinitely restricting helicopter flights near Washington Reagan National Airport after a deadly collision between an American Airlines regional jet and Army Black Hawk killed 67 people.

Kentucky native J. Todd Inman is helping oversee the investigation into the Washington D.C. plane crash for the National Transportation Safety Board.

Black boxes recovered after a jet and Army helicopter collided near DC; 14 still missing as NTSB investigates the deadly crash. Follow Newsweek's live blog.

CBS News confirmed only one air traffic control worker was managing the helicopters when the crash between a military helicopter and passenger plane occurred in Washington D.C. That is a job normally done by two people.

Clues emerging from the moments before an Army helicopter collided with a passenger jet suggest breakdowns in the system meant to help aircraft land safely at the busy Reagan National Airport.

The National Transportation Safety Board (NTSB) urged the public not to “speculate” about the cause of the deadly midair collision near Ronald Reagan Washington National Airport in a Thursday

In the early morning hours of Thursday, Donald Trump’s new transportation secretary Sean Duffy approached the microphone at a press conference, as search and rescue crews scoured the Potomac River looking for survivors of a crash between a military helicopter and a commercial jet near Washington.

U.S. authorities said on Thursday it was not yet clear why a regional jet crashed into a U.S. Army helicopter at a Washington airport, killing 67 people in the deadliest U.S. air disaster in more than 20 years.

Officials say there are no survivors among the 67 passengers on the aircrafts that collided above Washington, D.C.

Investigators plan to push forward on Friday with efforts to retrieve the two aircraft involved in a crash in Washington that killed 67 people and raised questions about air safety in the U.S. capital.

Two of Reagan National Airport’s air traffic controllers were doing double duty Wednesday night, according to a government report.