A possible hijacking attempt on a Russian plane with 170 people on board on Thursday ended after the pilot made an emergency landing in Prague.
Czech police said that police, assisted by passengers, managed to subdue the hijacking suspect.
The hijacker's identity was not immediately known.
The Airbus plane belonging to the Russian airline Aeroflot was en route from Moscow to Geneva when the pilot radioed for an emergency landing while indicating that there had been a hijacking attempt.
The plane landed at 10:42 am (0942 GMT) in Prague, the chief of police Vladislav Husak said. A crisis staff had been set up at the airport, while fire and emergency medical teams were on alert at the airfield.
The Polish television news network TVN 24 said there were doubts whether it was an actual hijacking attempt. It cited eyewitnesses as describing a row, which had broken out on the plane, which then escalated.