Snow and ice causing widespread disruption across parts of the country this morning.
Drivers are being advised to take extra care with a status yellow weather warning still in place.
The counties worst affected by icy roads are Cork, Sligo, Limerick, Galway, Tipperary, Roscommon and Cavan.
Up to three to four inches of snow has fallen on some routes across the north-west region overnight and conditions are hazardous, even on roads that have already been treated.
Sligo County Council is advising motorists to drive only if necessary. The local authority has been clearing the N4 dual carriageway with a snow plough and gritting is also taking place.
Motorists in Leitrim are advised there is heavy snowfall on the Carrick-on-Shannon to Killashandra road.
In Cork, Gardai in Mallow say that roads around Kanturk, Newmarket, Meelin and Rockchapel are particularly bad.
A number of school bus services have been cancelled and weather conditions have led to flight cancellations and delays.
Snow is causing delays in parts of Donegal, while some routes in Wicklow are impassable.
Motorists are being advised to slow down and allow extra time for your journey.