An American man has been arrested for urinating on another passenger during a trans-pacific flight.

The 24-year-old was flying from Chicago to Narita International Airport, in Tokyo, Japan, with All Nippon Airways (ANA) on Friday, August 17.

The victim, a 50-year-old Japanese man, stated that he had had no previous contact with the American.

An American man urinated on a Japanese passenger during the All Nippon Airways flight (Picture: Getty Images)

He is believed to have been sitting two rows behind the suspect on the flight.

Police say the American had consumed at least five glasses of champagne before the incident occurred.

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Japan Today reports that he later said he could not remember what he had done.

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He was restrained by the crew and handed over to police once the aircraft landed in Japan.

Metro.co.uk has contacted ANA for comment.