Video captured on a plane leaving Washington after last week's Capitol riots show pro-President Donald Trump supporters chanting before the pilot threatens to ditch them mid-flight.
The footage filmed on Friday (local time) shows a group of Trump supporters chanting "USA, USA, USA!"
It was captured on an American Airlines flight out of Washington bound for Phoenix, Arizona.
In a separate video taken on the same flight, the pilot tells passengers through the intercom, "It's a four-and-a-half-hour flight down to Phoenix - we'll put this plane down in the middle of Kansas and dump people off, I don't care.
"We will do that if that's what it takes so, behave, please."
Conservative Mindy Robinson, who took one of the videos, claimed American Airlines staff were also rude to her on a previous flight for wearing a 'MAGA' hat.
"American Airlines is everything but American," she said on Twitter.
"Do these companies not understand how many of us there really are?"
American Airlines defended the pilot's actions. A spokesperson told The New York Post he was "emphasising the importance of following crew member instructions and complying with mandatory face-covering policies.
"At American, we take the safety of our customers seriously and we value the trust they place in our team to care for them throughout their journey."
The spokesperson told The Post no incidents occurred after the plane took off.
Five people were killed after the storming of the Capitol last week, including local police officer Brian Sicknick. Dozens are also facing criminal charges.