About 6,000 travellers could be stranded after Aer Lingus cancelled all outbound flights from Dublin airport due to heavy snow falls.
The situation will be reviewed at 2300 BST on Thursday. The airline said that the earlier closure of the runway earlier affected its flights schedules.
Inbound flights are still arriving into Dublin airport.
Aer Lingus flights to and from Shannon, Cork and Belfast airports are still operating.
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