IRELAND's first known quadruplets have celebrated their milestone 30th birthday.
Known as the "Duffy Quads", brothers Thomas, Niall and John Paul Duffy celebrated the big 3-0 with their sister Orla as well as their siblings Conor (26) and Roisin (31) at the family home in Carrickmacross, Co Monaghan, over the weekend.
The siblings were conceived naturally and made headlines after being delivered by Dr David Lowry at the Craigavon Area Hospital in Co Armagh on May 7, 1981, weighing in at a combined weight of just 18 pounds.
Their birth came as a surprise to their mother Elizabeth and father Peader -- Mrs Duffy was told she was having twins a few days prior to their birth.
Orla, who just recently returned from Australia where she has lived for the past five years, said they are all thrilled to have reached the milestone with a clean bill of health.
"We are all really proud of our parents and we thank them so much for sacrificing for us over the years, and also for their patience," she said.