The Portaferry lifeboat was launched twice over the weekend, after a fire on a motorboat and a yacht crew member suffered a head injury.
On Saturday at around lunchtime, the RNLI responded to a call for help from a 30ft motorboat with four people, two male and two female, on board.
They reported that they had an engine fire and they were close to Ballydorn, White Rocks in Strangford Lough.
The volunteer RNLI crew was on scene with the stricken vessel by 12.57pm, just 20 minutes after the call for assistance.
Yesterday the crew was called out after a call for help from three men on board a 28ft yacht, one of whom had sustained a head injury. The casualty and one other yacht crew member were taken on board the RNLI lifeboat where one of the volunteers administered first aid.
The casualty was then taken by the lifeboat crew to nearby Ringhaddy Pontoons, before being handed over to the care of the ambulance service.