Around 100 family members and friends of Imelda Keenan have attended a service in Waterford to mark the 30th anniversary of her disappearance there.
The service heard calls for her disappearance to be treated by gardaí as a murder investigation. There were also appeals for new information about her disappearance.
Imelda Keenan was last seen on 3 January, 1994, when she left her apartment in Waterford to carry out an errand.
Her family believe she was murdered and are appealing for information that might lead to the recovery of her body.
"Thirty years down the road, I tell everyone how I feel," her older brother Gerry told RTÉ News.
"It is as raw today as it was 30 years ago.
"We are not looking for revenge. We are just looking for Imelda's body. And if someone could come forward and tell us where her body is, we would be so grateful.
"All we want to do is bring Imelda's body home to Mountmellick, to bury her with her parents."
Imelda's family believe there are people who know more about her fate, who could still be of great help to the on-going investigation.
Ms Keenan was originally from Mountmellick in Co Laois, but moved to Waterford city in the early 1990s, like her brother Gerry, who still lives in the area and is one of the leading figures in the search for answers.
Every year - just as they did this afternoon - family members gather at a plaque on Lombard Street in Waterford, which was erected to mark her disappearance and keep her in the public mind.
"It really has taken its toll on the family. Some of our siblings went to their grave, like my own mother, and all went with broken hearts, not knowing what ever happened to our little sister," Gerry Keenan said.
The family hope that the investigation will eventually be treated by gardaí as a murder inquiry. They say the last year has given them some encouragement.
Imelda's niece, Gina Kerry, said: "We did a lot of campaigning and appeals, and a lot of people have come forward with information, so I think this year has been more intense but more positive and given us more hope that we might get answers."
They still want people to come forward with any information that could prove useful.
"Let it be small, or anything smaller than small," Gerry Keenan said.
"Anything that's relevant to the case, that might bridge some kind of a gap or put that jigsaw puzzle together for us, any information at this stage is relevant.
"We need that information, we need it so badly. Thirty years is a terrible long time to carry pain."
