A man taking part in the Rhythm and Alps music festival was airlifted to Dunedin Hospital early this morning after a suspected drug overdose.
A St John southern communications spokesman said the man, of unknown age, was transferred to hospital in a moderate to serious condition after having a seizure.
It was unknown what kind of overdose the man might have suffered, "it could be a combination of things," he said.
A rescue helicopter was sent from Queenstown to the festival in the Cardrona Valley near Wanaka, but it had difficulties so a helicopter was dispatched from Dunedin to transfer the man.
Police Sergeant Simon Paget said the behaviour of those taking part in the festival had been good and no arrests were made overnight.
Police were also pleased with driving behaviour and no-one was stopped for driving with excess breath or blood alcohol.
However, three people were arrested in Wanaka. Two were charged with fighting and another with disorderly behaviour, Paget said.
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