A Health and Safety Executive investigation has been launched after a fire on board one of the North Sea’s oldest oil rigs.
More than 100 workers were called to muster stations when the small blaze on the Tartan Alpha drilling and production platform was discovered.
It started in the rig’s generator room and was quickly put out by staff.
There were 122 people on the Talisman Sinopec Energy platform at the time, although production is currently shut down for maintenance.
Nobody was injured during the incident.
An HSE spokesman said: “We are aware of the incident and we will be making inquiries early in the week.”
A Talisman spokesman said: “Talisman Sinopec Energy UK Limited can confirm that an incident on board the Tartan A platform was reported at 10am on Saturday.
“A small fire was detected in one of the emergency generator enclosures which was promptly extinguished and the situation brought under control.
“The platform was shut down for ongoing maintenance at the time of the incident.
“There are 122 personnel on board the platform, who were called to muster, and all have been accounted for.”
The rig, which is 177 miles north-east of Aberdeen, was previously owned by Texaco and dates from 1979.
A coastguard spokesman in Aberdeen said officers had no involvement in the incident, although they were made aware of it.
He said: “All we did was monitor the situation, Talisman didn’t ask for any assistance, they handled it themselves.”
Following an inspection of the Tartan Alpha platform in 2011, the HSE issued a notice of improvement to Talisman amid allegations of overcrowding.
One inspector later describing the living conditions on the rig as “claustrophobic”.
Talisman lodged an appeal against the notice on the grounds the cabins were never occupied by more than two people at any one time
The Canadian firm won its appeal against the claims during a tribunal in Aberdeen in November 2011.
The incident was the fourth fire reported this year on an North Sea installation.
RMT union regional organiser, Jake Molloy, said it was “unfortunate” the workforce was being put at risk.