A 22-year-old man named as Timothy Brockhurst has died at the V Festival in Staffordshire.
Security guards at Weston Park were called to his tent at around 1am today.
Despite attempts by the campsite guards to revive him, he was pronounced dead after paramedics arrived.
Superintendent Pete Owen of Staffordshire Police said the forensic team is still investigating at the camp site and will take the tent away for further forensic examinations.
Police are speaking to Mr Brockhurst's friends as well as anyone who saw him yesterday, they are hoping that by releasing his photograph people may recall seeing or speaking to him.
Superintendent Owen added they are not treating the death as suspicious but are treating the death as unexplained.