Motorists are being advised to take extra care on the roads this morning, with reports of ice throughout the country.
Temperatures dropped to as low as minus 5 in some parts last night.
AA Roadwatch say many routes are treacherous this morning - especially in the midlands. The advice is to slow down and increase your breaking distance.
Mét Eireann say there'll be severe frost for much of the morning - although forecaster Joan Blackburn says the weather with improve a little this afternoon: