More than 100 angry Ryanair passengers staged a sit-in in an aircraft cabin for several hours on Wednesday after their flight was diverted to Belgium.
The travellers, mostly French tourists returning from holiday in Morocco, were bound for Beauvais, in northern France.
But their flight - along with three other Ryanair flights - was forced to land in Liege instead.
Roughly 100 passengers on board ended up spending a total of eight hours on the plane before agreeing to leave.
"It was a very tense situation," said Christian Delcourt, the spokesman for the Liege Airport.
"Some of these people were very aggressive, very rude".
Passengers from the three other diverted Ryanair planes accepted the offer of bus transportation to Beauvais, some 350km (225 miles) away.
But those on the fourth plane refused to leave.
"The passengers were unreasonable and refused to follow the advice which would have allowed them to complete their journey," Ryanair spokesman Stephen McNamara said in a statement.
BBC News
