Snowfalls early this morning affected some areas of the north and northwest.
Driving conditions were difficult in parts of counties Tyrone, Fermanagh, Cavan and Leitrim.
The main Dublin to Derry road between Ballygawley and Omagh was among the worst affected.
Snow was up to 10cm (4') deep in places and some primary schools were closed.
Police said there were a number of minor collisions.
Elsewhere, icy conditions were reported in Cork, Laois, Westmeath, Wicklow, Wexford and Tipperary.
There were a number of collisions on the N11 in Wicklow and on the old N8 road in Cork.
Visit AA Roadwatch and Met Éireann for updates
