Freezing conditions and further snow storms are predicted in Ireland with travelling difficult across the island.

The two main airports in the Republic and Northern Ireland reopened, but snowfalls that were among the worst in decades continued to cause problems.

There were warnings that many roads remained icy, while northern counties saw some of the heaviest levels of snow in 25 years.

Dublin Airport is fully operational, but anyone travelling was warned to check their flight details before leaving home.

"There may be some delays to the flight schedule as a result of adverse weather conditions at other European airports," said Dublin Airport staff.

"Passengers intending to travel today are advised to consult with their airline or airline's website before coming to the airport for the latest information regarding their particular flight."

A spokeswoman for Belfast International airport said it had reopened, though fresh snow hit the venue between 4.30am and 6.30am on Saturday.

"We are expecting delays and cancellations throughout the day with Geneva, Liverpool and Faro flights cancelled so far," they said. "Severe weather across UK is also expected to cause delays so passengers should still continue to check with their airline as to the latest information on their flight."

Belfast City Airport, which closed on Friday morning, had reopened briefly before conditions forced its closure again.

There are forecasts for freezing temperatures and further snow falls across Ireland, north and south.