Four Killed At Gold Coast's Dreamworld

Four people have been killed in a horror accident where it is understood a ride flipped at Dreamworld on the Gold Coast.

The incident occurred on the Thunder River Rapids Ride, which is a water-based raft ride using a conveyor belt, about 2.20pm Queensland time.

Police sources confirmed to the Gold Coast Bulletin four people were dead.

The riders were understood to be trapped in the conveyor belt.

Queensland police tweeted that four people were "critically injured".

A Queensland Workplace Health and Safety spokesman said they had been informed of the incident.

Preliminary reports it may have been an industrial accident on a ride undergoing repair were false, he said.

"The early indications we have is that the ride was operating at the time of the incident," he said.

Dreamworld has been contacted for further details on the incident.

US Olympic gold medallist Matthew Centrowitz tweeted he just got off the ride that the accident happened on.

Source: NZ Herald