Alice Cooper is due to play at the festival on Saturday
Police say two people have been found dead at a music festival in southern Norway headlined by Alice Cooper.
The victims were found in or near a bus at the Norway Rock Festival in Kvinesdal, 270 miles southwest of Oslo. "We do not know exactly how they died, but we assume they suffocated on fumes while they were on the bus," said police spokesperson Asbjorn Enoksen.
Six more festival-goers were taken to hospital after being found outside the vehicle, he told the AFP news agency.
Preliminary hospital reports indicated carbon monoxide poisoning could have been a cause.
All of the victims were believed to be Norwegian citizens in their 20s and 30s, Enosken added.
The names of the two who died have not been disclosed.
The Kvinesdal festival was established in 2006 and this weekend's events are expected to continue despite the deaths.
Alice Cooper headlined the main stage on Friday night, with Motorhead and The Quireboys due to play on Saturday.
A spokeswoman for Motorhead said the group were not on site at the time of the incident.