Islanders have been warned not drink tap water because of high levels of aluminium.

Residents on Whalsay, Shetland, have also been told not to cook with the supply.

Bottled water is being offered to residents while Scottish Water deals with the problem, which is thought to affect about 300 people.

It comes just weeks after a state-of-the-art £5m water treatment plant opened on Whalsay.

Scottish Water said the plant was "producing very high quality water" and a build up of sediment in old pipework is believed to be responsible.

The issue is affecting customers in the Marrister, Brough, Challister and Skaw areas of the island.

A spokesman said: "Following reports from a small number of customers of an unusual taste in their water, we have detected higher than normal levels of aluminium in part of the island network.

"We are working to resolve this problem and to return supplies to normal and to ensure we have resources available on Whalsay to assist our customers.

"Collection points for bottled water have been set up at Symbister Pier and Brough School."