Watch as the National Transportation Safety Board hosts a media briefing on its investigation into Wednesday’s mid-air collision near the Ronald Reagan Washington National Airport.The collision involved a PSA Airlines Bombardier CRJ700 airplane and a Sikorsky H-60 military helicopter and killed 67 people.

U.S. authorities restricted helicopter flights near Reagan Washington National Airport after a midair collision between an American Airlines jet and a military helicopter killed 67 people. The investigation focuses on gathering flight data and interviewing air traffic controllers to determine the cause of the crash,

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

Sixty passengers and four crew members from the plane and three Black Hawk helicopter personnel are feared dead as a recovery mission is underway.

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

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.

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.

U.S. President Donald Trump said on Friday the Army Black Hawk helicopter that collided with a regional passenger jet in Washington, D.C. was flying too high at the time of the accident, in what appeared to be a major disclosure about the investigation.

NTSB to hold a media briefing at 4 p.m. ET today on its investigation into Wednesday’s mid-air collision involving a PSA Airlines Bombardier CRJ700 airplane and a Sikorsky H-60 military helicopter near Ronald Reagan Washington National Airport. Briefing will be held at the… pic.twitter.com/vSaYBb0tFw

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.

The Army identifiies two soldiers aboard the Black Hawk that collided midair with American Airlines plane on Wednesday. Third soldier's ID being held.

Before the deadly collision at Ronald Reagan Washington National Airport on Wednesday, Delta Air Lines lobbied Congress to allow more flights into the busy airport, with the support of lawmakers from Georgia.