Two lifeboats were called out to assist the Kitty Petra when it suffered an engine fire. A windfarm support vessel issued a mayday alert when it caught fire six miles off Rhyl.
RNLI crews from Llandudno and Rhyl were both paged to the ship, called Kitty Petra at 5.53pm on Monday.
The Rhyl crew had the shortest distance to travel, and arrived on scene a few minutes before the Llandudno crew.
The vessel had contained the fire, but was proceeding back to Mostyn port on one engine.
Other windfarm support vessels were also on hand.
The skipper of the Kitty Petra then started slowly making it’s was back to Mostyn, escorted by the lifeboats.
As the convoy neared Prestatyn, Llandudno lifeboat was stood down by the UK coastguard at Holyhead, and Rhyl lifeboat continued with escort duties until the vessel was in the confines of Mostyn harbour.
Once all was well, the lifeboat returned to station by 10.15pm.
Acting Rhyl lifeboat coxswain Andrew Wilde said: “The skipper of the windfarm vessel did the right thing by calling for assistance.
“Luckily the incident did not escalate, but the lifeboats were on scene to assist should the lives of the crew be put at risk.”