Austrian authorities say a passenger from Slovakia has been arrested at Vienna's international airport after he caused a disturbance aboard a U.S. jetliner.
Officials say U.S. sky marshals overpowered the unidentified man during a Delta Air Lines flight to the Austrian capital.
It was not immediately clear where in the U.S. the flight originated.
Police at Vienna's Schwechat International Airport have denied reports that the man tried to set a curtain on the jetliner on fire.
They said in a statement that he did not attempt a hijacking, but was unruly and taken into custody on board the airliner as a security precaution. Officials said Friday the suspect was arrested after the plane landed Thursday.