Two teenagers who died at the T in the Park music festival in Perthshire have been named as Megan Bell and Peter McCallum.
The 17-year-olds were from County Durham in the north-east of England and Lochgilphead on the west coast of Scotland respectively, according to a report in the Sunderland Echo.
While the police are treating their deaths a suspicious, investigating officers are looking at the possibility they were drug-related.
As a result, T festival organisers have set up amnesty bins for in the campsites to anonymously dump recreational drugs.
They said in a tweet: "Dump your drugs. Amnesty bins are now in the campsite at welfare. Bin them and you won't be in any trouble.
"Look after each other. If you or your friends feel unwell, get help right away from any festival staff.
"There's no safe way to take drugs. Don't take the risk."
Chief Superintendent Angela McLaren said: "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."
Police are also appealing for information after a cash machine was stolen from the festival's main arena sometime between midnight on Thursday and 7am on Friday.
The ATM contained a "significant" amount of cash, officers said, as they asked any witnesses to come forward.
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