Motorists are again being urged to take extreme care on the roads this morning after temperatures plummeted once again overnight.
A slight thaw over the weekend meant roads were very wet from melting snow, and that has now frozen over leaving untreated roads icy and dangerous, and also making footpaths and walkways very slippy.
Gardai are urging motorists not to drive unless absolutely necessary.
Overnight, particularly dangerous conditions were reported around the corkscrew at Doochary, with the Donegal Mountain Rescue Team being called out at 3.50am to help a man attempting to get to Letterkenny General Hospital.
The team also helped the driver of a lorry which had jacknifed.