Disruptions by passengers often fuelled by alcohol getting worse, says industry body.
Airline chiefs have voted to support tough measures to deal with the growing problem of out-of-control passengers, who are often fuelled by excess alcohol.
International Air Transport Association delegates voted at its annual meeting to unanimously adopt a resolution that calls on governments and industry to work together on measures to deter and manage unruly air passengers.
Tim Colehan, IATA's assistant director of external affairs, said at the meeting in Doha the problem was getting worse.
Since 2007 there had been 28,000 cases of unruly passenger behaviour, including physical assaults, disturbing good order on board or failing to follow lawful crew instructions.