Parts of the UK woke up to snow on Friday morning as forecasters warned up to 20cm (8in) could fall in some regions.
Temperatures plunged across the UK as Storm Caroline brought winds of up to 90mph to northern Scotland and left an Arctic air flow in its wake.
About 8cm of snow had already fallen in Aviemore, in the Scottish Highlands, by dawn on Friday, while parts of Northern Ireland, Wales and areas to the west of the Pennines had also seen a covering.
Forecasters said snow was likely to become more widespread throughout the day, and a yellow weather warning was in place for ice and snow across much of Scotland, Northern Ireland, Wales and parts of northern and western England.
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Airline passengers have been delayed at Belfast City Airport after its de-icing machine broke down. Several flights in and out of the airport have been postponed or cancelled as heavy snow is dumped across Northern Ireland.
The AA reports that multiple car accidents have occurred on the A55 in north Wales due to "hazardous driving conditions". A lane was closed to prevent any further incidents.

Another yellow weather warning for snow has been issued for central parts of the UK, which is in place from 4am on Sunday until just before midnight.
All schools in Orkney, Shetland, and the Isle of Man have been closed on Friday, while dozens more failed to open in Northern Ireland, Aberdeenshire and the Highlands.
Storm Caroline left around 500 homes in Shetland, Orkney and Caithness without power overnight. Repair teams were stood down for safety reasons due to high winds.

Up to 8 inches of snow forecast
The IndependentParts of Britain woke to a blanketing of snow on Friday morning as forecasters warned up to 20cm (8in) could fall in some places. Storm Caroline, which brought more than 90mph gales to parts of northern Scotland, left an Arctic air flow in its wake, with temperatures plunging across the UK. About 8cm of snow had already fallen in Aviemore, in the Scottish Highlands, by dawn on Friday, while parts of Northern Ireland, Wales and areas to the west of the Pennines had also seen a covering.Please allow a moment for the live blog to load.
Met Office meteorologist John West said: “We saw a fairly consistent stream of snow showers overnight, and there will be a constant feed throughout the day and into Friday.
“We could see some fairly significant accumulations. Broadly speaking we're looking at 2cm to 5cm, but in more exposed areas we could see 10cm to 20cm.
“It will also be bitterly cold, with highs of 2C or 3C outside those snow showers. But the wind chill is going to make it feel sub-zero.”
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