A drunk Russian-speaking passenger who became unruly and started yelling he was a terrorist prompted a Lufthansa Airbus A320 to make an emergency landing in the Polish city of Katowice on Monday.

The middle-aged passenger cooperated though when an anti-terrorist squad removed him from the plane. He would be questioned by airport police as soon as he sobers up.

The Lufthansa plane, with 118 people on board, continued its flight after a one-hour delay due to the incident.