A Korean who became agitated aboard a domestic U.S. flight on Saturday forced the plane to make an emergency landing.
ABC News showed footage recorded aboard a JetBlue flight from New York's JFK International Airport to Las Vegas, showing a "hollering, agitated passenger who ignored pleas to calm down."
Flight attendants subdued the man and restrained him with plastic handcuffs, according to ABC. The captain decided to land in Detroit.
The video clip, shot by another passenger and obtained by ABC News, shows the man causing a commotion and resisting attempts by flight crew to keep him in check, only to be restrained by force after he steps out into the aisle.
The man is heard to shout in Korean, "Stand still! Stop messing around! I'll kill all of you!" while a woman's voice can be heard saying, "Dad, stop it!"
The passenger was released after questioning the following day, but it remains unclear what caused the outburst.
David Porter, an FBI spokesman in Detroit, said the unruly behavior "did not rise to the level of threatening the aircraft." He added, "Flight attendants were able to get a handle on the situation relatively quickly."
It is unclear whether the man will face criminal charges.