Hundreds of thousands of air passengers are stranded at airports across Europe as snow grounds flights.
Dublin, Cork and Shannon airports, as well as the two airports in Belfast, are all open this morning - but flights have been grounded in Frankfurt, Paris, Brussels and Amsterdam as well as in London and Edinburgh.
Authorities have cancelled about 300 flights at Germany's main airport at Frankfurt and are expecting more snow.
In Paris, almost half the flights at Roissy-Charles de Gaulle and Orly airports have been cancelled, with thousands of passengers stranded at Charles de Gaulle airport.
All passengers are advised to contact their airlines before travelling to the airport, particularly concerning connecting flights.