WATCH: Passenger dragged from seat by police due to the plane being overbooked

Video of police appearing to drag a man from his seat on an airplane has surfaced online.

Passengers filmed the incident, watching the two police officers forcibly remove the man from the plane, dragging him kicking and screaming down the aisle.

According to operator United Airlines, the flight from Chicago to Louisville was overbooked and was looking for volunteers to give up their seats.

@United overbook #flight3411 and decided to force random passengers off the plane. Here's how they did it: pic.twitter.com/QfefM8X2cW — Jayse D. Anspach (@JayseDavid) April 10, 2017

A second video shows the incident from another angle.

@united @FoxNews @CNN not a good way to treat a Doctor trying to get to work because they overbooked pic.twitter.com/sj9oHk94Ik — Tyler Bridges (@Tyler_Bridges) April 9, 2017

In the video, fellow passengers can be heard protesting and asking the police to stop.

In a statement to WHAS11, United said:

“Flight 3411 from Chicago to Louisville was overbooked. After our team looked for volunteers, one customer refused to leave the aircraft voluntarily and law enforcement was asked to come to the gate. We apologize for the overbook situation.”