Ryanair is to cut 48 services out of Dublin Airport from January.

The airline has announced that the Dublin-Cork route will reduce from two return flights a day to one.

Dublin flights to and from East Midlands, Edinburgh, Glasgow, Leeds Bradford, and Manchester are also to be cut.

Separately, more than 100 angry Ryanair passengers sat in a dark cabin for hours overnight after their flight was diverted to southern Belgium.

The passengers refused to disembark until buses took them to their original destination in France.

The airline said the plane was among four flights that were forced to land at the airport in Liege because fog forced the closure of the airport in Beauvais, France.

'Of the four AC (aircraft) that diverted to Liege just one group of passengers were disruptive,' Ryanair spokesman Stephen McNamara told news agency AFP in an email.

'This is clearly a case of unreasonable behaviour by a minority of passengers,' he said, adding that buses eventually took all passengers to Beauvais.

The plane landed in Liege at around 11.30pm and passengers only agreed to come out after 3.30am this morning. Their bus left at around 4.30am.

'The plane didn't land in Beauvais but in Liege without warning us. Consequently, we refused to leave the plane,' said passenger Mylene Netange.