The pair were in a 14ft punt when they got lost in the fog at Swan Island, according to the RNLI.

They called 999 for help shortly after 20:00 BST on Wednesday (30 September) and were rescued by Larne RNLI’s inshore lifeboat.

Crew helm Pamela Dorman said the rescue was “particularly challenging” with visibility down to two to three metres.

“However, we are trained to deal with these situations and with the assistance of Belfast Coastguard and the casualties we were guided to the location and able to return the men safely to shore,” she added.

“The casualties had made the correct decision to raise the alarm and request assistance when they got into difficulty.

“We would always urge anyone in distress to call 999 and ask for the Coastguard.”

The volunteer rescue crew towed the punt to Larne Boat Club slipway.

Thick fog has been reported in many parts of Northern Ireland overnight and during the morning rush hour.

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