Four people were rescued from their fishing trawler in Strangford Lough on Saturday evening after the boat lost power and began to take on water.
Portaferry Lifeboat Crew got to the scene in Ringhaddy Sound just after 8pm on Saturday after the alarm was raised by the crew of a neighbouring yacht.
A local vessel from Portaferry was also able to take a salvage pump to the lifeboat crew and the water was pumped from the boat..
A man and woman from the group of four had already transferred to the neighbouring yacht when the lifeboat crew arrived.
Brian Bailie, volunteer Lifeboat Operations Manager at Portaferry RNLI said: “We would like to pass on our thanks to everyone who helped bring this mayday call to a safe conclusion.
“The prompt actions of everyone involved resulted in a positive outcome and the volunteer RNLI crew for the second time in as many days helped to avert a potentially very serious situation.’”
Meanwhile on Friday evening Red Bay Lifeboat rescued two people just over four miles off the coast of Rathlin Island.
The men’s yacht had gearbox trouble and they were suffering from seasickness when the crew arrives and towed them to Ballycastle by 6.30pm.