Ryanair Holdings Plc has banned passengers from carrying alcohol into the cabin with them on flights connecting the Scottish city of Glasgow with the European party- island of Ibiza.

The new rule, unique to the route, means spirits or wine bought in the duty-free area must be checked in at the gate to be stowed or left behind, Europe’s biggest discount carrier said in an e-mailed response to queries. The policy took effect last week after consultation with Glasgow Prestwick airport and customers.

Many airlines, including Ryanair and rival EasyJet Plc, allow passengers to take their own alcohol to their seats on other flights but don’t permit them to consume it once aboard. Both carriers sell drinks as part of their standard service. Rules on consuming alcohol on planes are left to the discretion of airlines, according to the U.K.’s Civil Aviation Authority.

“We will not tolerate unruly behavior at any time,” Ryanair said. The carrier declined to say whether the policy was adopted because of a specific incident. A flight on the route was diverted to France in 2013 due to the behavior of some drunk passengers.

The Spanish island of Ibiza is known for its club and party scene, drawing bachelor and bachelorette groups from all over Europe. Dublin-based Ryanair operates 23 routes to the island, including eight from the U.K. and one from Ireland.

This article was written by Kari Lundgren from Bloomberg and was legally licensed through the NewsCred publisher network.

Photo Credit: Passengers onboard a Ryanair flight. Ruthann / Wikimedia Commons