Police investigating the deaths of two teenagers at the T in the Park music festival have said there were no suspicious circumstances.
A male festival-goer from the west of Scotland and a female from the north of England - both aged 17 - died as Scotland's biggest music event got under way at Strathallan Castle in Perthshire.
Officers are looking at the possibility the deaths were drug related and they have warned revellers against taking illegal substances.
Chief Superintendent Angela McLaren said: "Our thoughts and condolences are with the families of the two young people involved.
"We are continuing to investigate these deaths and are following lines of inquiry, including the possibility that they may be drug related. I would remind all persons attending the festival that there is no safe way of taking drugs.
"Anyone who has any concerns for themselves or others at the festival should contact festival staff, police officers or medics for assistance."
Campers began arriving on Thursday for the three-day event, which will see The Stone Roses headline on Friday evening.
More than 80,000 revellers are expected over the weekend, with a line-up which also includes Calvin Harris and Red Hot Chili Peppers.
T in the Park is being staged at Strathallan for the second time after moving from Balado in Kinross-shire in 2015.
Last year, a 36-year-old man from the north of England was found dead at the campsite.
Festival director Geoff Ellis said: "We are shocked and saddened by today's news and our thoughts are with the families and friends at this time.
"We are offering our full support and assistance."
Police Scotland said next of kin have been informed and a report will be sent to the procurator fiscal.