text: The vessel's engine failed a mile north east of Muck Island on Thursday evening.
  Weather conditions at the time were described as good with a Force 3 wind and a slight swell running.
  A volunteer crew from the Larne RNLI launched two lifeboats at about 18:30 BST.
  The lifeboat towed the yacht to Carrick Marina.
  Larne RNLI Deputy Launching Authority Philip Ford-Hutchinson said the call-out was "a great example of both our inshore and all-weather lifeboats working well together to assist the four people onboard the casualty vessel".
target: Four people have been rescued after their yacht got into difficulty off the County Antrim coast.