Frontier Airlines

In this photograph taken late Monday, Feb. 8, 2016, a Frontier Airlines plane heads to a runway at Denver International Airport.

(AP Photo/David Zalubowski)

A Portland-bound flight returned to its gate at Denver International Airport on Monday after a passenger reportedly started screaming and removed all her clothes as the plane prepared to take off.

The incident on a Frontier Airlines flight was filmed by another passenger, and KDVR-TV in Denver obtained the footage. It shows the woman falling to the ground near the front of the plane, kicking and screaming while hitting her head against the cockpit door.

Then she began to remove her clothes, at which point the footage ends.

The passenger who captured the incident on a cellphone camera, who spoke to the TV station but was not identified by name, described the woman's behavior as "erratic" even before she boarded the plane. She also tried to pry open a panel to release her seat's emergency oxygen mask, the man said.

The flight returned to the gate, a Frontier Airlines spokesman told KDVR. Police escorted the passenger off the plane, which then continued on to Portland.

-- Elliot Njus

enjus@oregonian.com

503-294-5034

@enjus