The Petroleum Safety Authority Norway (PSA) has launched an investigation into a fire that broke out in the engine room of Scarabeo 5 drilling rig this week.

A special team from PSA will travel out to the rig to complete the investigation. The team will also assist the ongoing police inquiry into the incident.

The rig is located on the Njord field in the Norwegian Sea.

"No fatalities or injuries have been reported."

There were around 105 persons on-board when the fire broke out on the Statoil operated field on 22 November. However, no fatalities or injuries have been reported.

The PSA investigation will look to clarify the course of events that happened on the day.

It will also conduct a probe to identify the direct and underlying causes of the fire.

Operated by Saipem’s Norwegian branch, Scarabeo 5 is a semi-submersible drilling rig of the ME 4500 type that was developed by Fincantieri in Genoa in 1990, reported Offshoreenergytoday.com.