Two male German tourists working in New Zealand were critically hurt in a crash in the Cromwell Gorge last night.

The vehicle the 19 and 20-year-olds were travelling in rolled on State Highway 8. No other vehicles were involved.

They were airlifted to Dunedin Hospital where one is in critical condition in intensive care and the other is in the high dependency ward.

Speed was not a factor in the crash and police are investigating if alcohol was involved.