Operator Perenco has confirmed that there was a gas release on a North Sea platform earlier this year.
The hydrocarbon release was detected on June 16 on the gas platform in the southern North Sea.
It is understood a crew had recently arrived by helicopter on the normally unmanned platform at the time of the release.
A spokesman for the firm said: “Perenco confirms that there was a gas release on the Davy Platform.
“The correct response procedures were followed, which included an emergency shutdown of the platform and notifying The Health & Safety Executive.
“There were no injuries to personnel or damage to equipment.
“Throughout the incident, the crew was supported by a safety standby vessel.
“An investigation into the cause of the release was subsequently launched and is ongoing.”
The Health and Safety Executive has been contacted for comment.