A passenger on a Frontier Airlines flight had to be restrained by other travelers after he broke a plane window.

A passenger aboard a Frontier Airlines flight to Houston had a violent outburst on Wednesday after being asked to move, punching and kicking in his seat until he cracked one layer of the plane’s window mid-flight.

An unruly passenger on a Frontier Airlines flight was tackled by fellow passengers Tuesday after they say he began punching an aircraft window.