T In The Park organisers warn revellers not to take risks following deaths
The deaths of two people at the T In The Park has brought "a great deal of sadness" to the event, the festival director has said.
It was announced earlier today that two people had died at the festival site in Perthshire which police are treating as unexplained.
Geoff Ellis has released a statement, saying: "This morning brought a great deal of sadness for us all and we've been doing all we can to assist Police Scotland with their investigation.
"We remain focused on delivering a safe, enjoyable event for the rest of the fans onsite and we thank them for their positive attitude.
"Make sure you look after yourself and your friends for the rest of the weekend. Remember, there's no safe way to take drugs, so don't take the risk.
"Enjoy the music and have a great time."
Police meanwhile appealed 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, and asked any witnesses to contact them on 101.
Police Scotland have made 17 arrests since the camp site opened on Thursday "mainly for minor offences".
Superintendent Conrad Trickett, the Police Scotland day commander for the event, said that so far it has generally been a "good natured" event.
He added: "We've only made eight arrests today and recovered a small number of drugs.
"We will continue with our policing operation overnight and into the weekend.
"We ask everyone to continue to look after themselves and their friends and speak to any of our officers if they need any assistance."
The news of the deaths will come as a blow to event organisers, DF Concerts which was forced to apologise last year following teething problems at the new Strathallan site which left fans feeling short changed.
A new transport plan was set up for this year's event, including separate roads for buses and cars, an improved bus station at a different location, new car parks, and a dedicated pick-up and drop-off point.
Ian Martin, transport manager, said: "Traffic has been flowing well into the site since we opened yesterday and our new bus station is a really positive addition this year.
"We thank fans for heeding our travel advice and ask everyone else who has still to set off either today or tomorrow to just take the time to check their routes on www.trafficscotland.org/tinthepark and then to follow event signage."
Some 182 people have required medical treatment so far for mainly "minor" ailments and injuries.
Nick Moore, at the Scottish Ambulance Service, said: "Fans are in good spirits and on the whole people are presenting for minor ailments and injuries.
"We'd remind everyone to make sure they come fully prepared with warm clothes, any prescription medicines they might need and to drink water throughout the weekend."
Meanwhile, Scotland's biggest music festival as in previous years has drawn some of the music industry's top performers.
Tens of thousands of revellers watched artists including Courteeners, Disclosure, Jamie XX and James Morrison perform on the opening day of T In The Park.
Later tonight, headliners, The Stone Roses will take to the main stage who have released new material for the first time in 21 years.
The festival runs until Sunday, with Calvin Harris, Jess Glynne, The 1975 and the Red Hot Chili Peppers all set to perform across the festival's six stages and tents.