The Federal Aviation Administration (FAA) and the National Transportation Safety Board (NTSB) are investigating a safety incident involving President Donald Trump's Marine One helicopter and a commercial flight. The incident occurred on Tuesday in Washington D.C. as Marine One prepared for departure with the president on board.

The NTSB has termed the event a "loss of separation," indicating a concern that the helicopter may have been too close to a commercial flight taking off from Ronald Reagan Washington National Airport. The FAA confirmed it is investigating the incident, stating that initial assessments did not suggest a dangerous close call or converging flight paths.

Marine One departed from Joint Base Andrews on Tuesday. The FAA and NTSB are scrutinizing the events surrounding its takeoff to determine if safety protocols were breached. The investigation will focus on the proximity of the helicopter to the commercial airliner during the flight operations.