Schools have been closed, 500 homes are without power and passengers were stuck at sea for 24 hours as Storm Caroline continues to batter Scotland.

The Met Office has issued a yellow "plan ahead" warning for snow and ice on Friday and Saturday.

More than 100 schools in the north and north east of Scotland have been closed.

All schools in Shetland and Orkney have been shut while others in Aberdeen, Aberdeenshire, Moray and the Highlands have also been closed.

Around 500 homes in Shetland, Orkney and Caithness are without power as repair teams continue to fix faults.

More than 20 ferry passengers were stuck at sea in Orkney.

The Hamnavoe was unable to dock safely at Stromness due to high winds after leaving Scrabster shortly after 10am on Thursday.

The vessel was due to arrive at Stromness at about noon but passengers were forced to stay on the ferry overnight as crews waited for conditions to improve.

Passengers eventually managed to get off at 9.15am on Friday.

Roads are also blocked due to crashes, including the A90 at the Toll of Birness in Aberdeenshire.