United Airlines have promised to compensate passengers who witnessed a man being dragged off a plane.

The airline sought to quell the uproar over the incident by insisting it would no longer ask police to remove passengers from full flights.

In an interview with ABC's Good Morning America, United parent company CEO Oscar Munoz said he felt "ashamed" watching a video of the man being forced off the jet. He has promised to review the airline's passenger-removal policy.

Munoz also apologised again to Kentucky physician David Dao, his family and the other passengers who witnessed him being taken off the flight.