Met Office warning of ice
The Met Office has issued a yellow warning of ice across the whole of Wales which is valid until 0900am.
It says there's the potential for some localised travel disruption
Live updates
Roads: A4119, Rhondda Cynon Taf
The A4119 is closed in both directions because of ice between Pen Y Groes and the B4262 Heol Isaf.
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Roads: A476, Tumble
There are hazardous driving conditions due to ice on the A476 around the B4306 (Pontyberem). Also affecting the B4317 from the B4306 Heol Y Parc (Pontyberem)
Met Office ice warning
The Met Office has issued a yellow "be aware" warning of ice for Denbighshire, Flintshire, Powys, Wrexham and Monmouthshire.
It says there could be difficult driving conditions in places.
Icy weather causes problems
The icy conditions are causing problems across parts of the country, with the Met Office issuing a 'be aware"'warning for Flintshire, Denbighshire, Conwy and Wrexham.
There are problems on some roads in Denbighshire and Powys. South Wales Police urge caution in Rhondda Cynon Taff and Merthyr.
Roads: A458, Powys
There are hazardous driving conditions because of ice on the A458 between the B4395 (Llangadfan) and the A470 (Mallwyd).
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Roads: A494
The A494 has reopened in both directions after the ice earlier between the B5429 (Llanbedr-Dyffryn-Clwyd) and the A5119 Ruthin Road (Gwernymynydd).
Roads: A5, Denbighshire
There are hazardous driving conditions because of ice on the A5 between the A539 Castle Street (Llangollen) and the B4401 (Corwen).
Roads: A494, Ruthin
The A494 has reopened in both directions after the ice earlier between the B5105 Mwrog Street (Ruthin) and the A5104 (Clawdd Poncen).
Roads: Gwaenysgor Hill, Flintshire
Gwaenysgor Hill is closed because of ice at Gwaenysgor.