Weather warnings are in place for Ireland amid plummeting temperatures of -4C in parts.
Met Éireann said it would be very cold overnight and into this morning with the danger of icy patches and some freezing fog.
The forecaster issued two separate Status Yellow Low Temperature and ice warnings.
The first warning is for Leinster and Munster, as well as counties Cavan, Monaghan, Galway and Roscommon, where it was very cold overnight and this morning.
The second warning is for counties Donegal, Leitrim, Mayo, Sligo with Met Éireann also forecasting a few sleet or snow showers in places.
The warnings came into effect at 7pm last night and are valid until 11am today.
Met Éireann advised that the lowest temperatures overnight would be between -3 and +1C, possibly colder in the midlands.
⚠️Yellow Warning Low Temps/Ice⚠️🥶
For All Country valid from 19:00 tonight Sunday 14/01/2024 until 11:00 Monday 15/01/2024
🥶Very cold overnight & early Monday morning with the danger of icy patches & freezing fog patches locally
Stay updated⬇️
ℹ️https://t.co/ZsjQsKCXDy pic.twitter.com/r9NWUIyoTz— Met Éireann (@MetEireann) January 14, 2024
Temperatures are forecast to drop further to -4C in parts today and tomorrow night.
In Northern Ireland, the PSNI told motorists that they should exercise caution on the roads following freezing overnight temperatures, particularly in rural areas.
A spokeswoman said: “Reduce your speed, and increase your stopping distance from the vehicle in front.”
It came as the UK Met Office issued a snow and ice warning for Northern Ireland between 3am today until 9am tomorrow.
It said snow showers would bring some disruption, warning the public to expect that some roads and railways are likely to be affected with longer journey times on services.
The forecaster said there will probably be some injuries from slips and falls on icy surfaces such as untreated roads, pavements and cycle paths.
A separate Yellow level snow warning will come into effect in northern areas for all of Wednesday and Thursday.
