A gas leak has lead to a North Sea oil platform being shut down.
The gas detection alarm was set off on Friday morning on the Brent Charlie platform, causing all non-essential workers to be evacuated.
There were 176 people platform at the time, with 31 being evacuated. There are no reported injuries.
Production has been ceased while an investigation is underway.
A Shell spokeswoman said: “Following a gas detection alarm, production was shut down and the platform called to muster. The source of the leak has been safely detected and isolated, and a full investigation into the cause will be completed.
“All 176 personnel on board have been accounted for and a precautionary partial downman of 31 non-essential personnel is under way.
“Relevant authorities have been informed.”