POLICE have have appealed for witnesses following the theft of an ATM machine at Scotland's biggest music festival.

The cash machine, said to contain a "significant" amount of money, was taken during the early hours of Friday morning from the main area at T in the Park.

The Perthshire festival opened its gates to campers arriving on Thursday ahead of the main arena opening on Friday.

Thieves made off with the cash machine some time between 12am and 7am.

This year's festival, at Strathallan Castle, is already the subject to a separate police investigation after two teenagers were found dead in separate incidents on Friday.

Anyone with information on the theft is asked to contact the police on 101.