Further snow forecast overnight

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Snow has been forecast for higher ground in Wales overnight after heavy falls caused disruption on Northern Ireland's roads.

Motorists were advised to drive with caution after temperatures dropped to their lowest October level since 1934.

The cold snap has caused sleet and snow showers across the UK since Tuesday.

BBC forecasters say there will be scattered showers and sunny spells on Thursday, but it will still feel chilly with a freshening easterly wind.

In Northern Ireland, the worst affected roads were in counties Londonderry, Tyrone and Down, with cars stranded on the Glenshane Pass near Dungiven.

The Roads Service said it had despatched 120 gritters to cover 7,000km of road in three hours.

Snow fell across parts of Wales on Wednesday, with the town of Aberporth in Ceredigion experiencing its coldest October day since 1946.

Nick Miller, from the BBC Weather Centre, said mid and north Wales would be affected by sleet and slow overnight, with rain at lower levels in south Wales and south-west England.

"Everywhere else will be mainly dry and not quite as cold as recent nights but there will still be a widespread ground frost on Thursday," he said.

He added conditions had improved across much of Northern Ireland, but there would be a risk of ice as skies cleared.

The wintry conditions have been caused by cold air that has come down from the Arctic.