The Mongstad facility (Photo: Øyvind Hagen/Statoil)
All 317 personnel who were not involved in the handling of the incident were evacuated when hydrocarbon vapours were detected escaping from a flange in the crude oil plant at Mongstad.
Statoil’s emergency response organisation was established, the authorities were notified and the evacuation alarm was sounded at approximately 1245.
The cause of the incident will be investigated thoroughly.