The plane was grounded overnight for maintenance, which meant the passengers were stranded for the night in Anchorage.
United Flight 895 was diverted to Anchorage on Thursday night, according to CBS affiliate KTVA, and police officials at Ted Stevens International Airport said the landing was due to a "passenger smearing feces everywhere".More news: Bay Area Jolted By 4.4 Earthquake On Hayward Fault
The man, who also tried to stuff his shirt in the toilet, forced the flight crew to divert to Alaska so he could be removed.
The man, a 22-year-old Vietnamese passport holder with USA residency, was escorted off the plane in handcuffs and met by law enforcement in the terminal, Gamache said.
In a statement, United said the unlucky passengers were put up in hotels and that the airline would be working to get them to their destinations as soon as possible. According to the airline, the passenger cooperated with the fight crew and was interviewed by authorities upon landing.More news: Trump border plan could prompt gov't shutdown, Democrat Durbin warns
The disgusting incident is being investigated by both airport police and the Federal Bureau of Investigation. He was taken to the Providence Hospital to undergo a psychological evaluation and the airlines are yet to press any charges against him.
The FBI reported that the man had been released from jail in Evansville, Indiana, two days prior to the incident and was on his way to Vietnam to live with relatives.More news: HP recalls battery packs due to burn, fire hazards