Parts of Ireland are blanketed in snow and forecasters are warning freezing conditions will persist.
Temperatures fell well below zero overnight in much of the country.
Heavy snow fell in Dublin and several other areas.
Met Eireann said it would remain very cold and dry across much of Ireland through Friday.
A yellow ice and low-temperature warning remained in place across the state as of Friday morning.
A yellow status snow and ice warning is in effect in Co Donegal until Saturday noon.
Met Eireann has warned of icy patches, lying snow and icy patches of fog in some areas of the country.
Winter showers are forecast for the northern and western coastal districts, some of which will be heavy.
Temperatures were not expected to rise above 4C on Friday and widespread “sharp to severe” frost was expected for Friday night, with lows of minus 5C.
Met Eireann said the cold weather was likely to continue into the weekend.
The traffic safety authority warns road users to be aware of the dangers of a drop in temperature and to pay attention to black ice.
In particular, concerns have been raised about the well-being of older people living alone and for those who sleep poorly.
The government said an energy supply alert could be issued in the next two weeks.
This is due to a drop in temperature leading to an increase in energy demand, while low wind speeds are expected to result in reduced energy supply.
In Northern Ireland, the Met Office has issued a yellow ice warning for counties Antrim, Down, Tyrone and Londonderry.
Snow was forecast for the region on Friday evening, with temperatures expected to drop to minus 4C.
https://www.independent.ie/breaking-news/irish-news/snow-falls-in-parts-of-ireland-as-forecasters-warn-of-wintry-weekend-42207372.html Snow falls in parts of Ireland as forecasters warn of a wintry weekend