Relatives of those who died in the Stardust fire 37 years ago have renewed their calls for a new inquest to take place.
At a news conference the relatives, alongside Sinn Féin MEP Lynn Boylan, said they were fighting for the victims and they were seeking truth and justice.
Forty-eight people died in the blaze which broke out during the early hours of Valentine’s Day in 1981 in the nightclub in Artane in north Dublin
The campaigners plan to deliver 48,000 postcards calling for a new inquest to the office of the Attorney General in the coming weeks.
They say it is at the discretion of the Attorney General whether or not to decide to hold a new inquest and the group said an inquest is necessary on the grounds of public interest alone.
They said 25,000 postcards have so far been signed.
Solicitor Darragh Mackin said their application to the Attorney General was now at an advanced stage.
Lisa Lawlor, who lost both parents in the fire, said a new inquest would bring some sense of closure to the relatives and she said justice needed to be delivered for those who died.
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Ms Lawlor said: "I went through intensive counselling for years, I was afraid of what I would hear and see if I joined the campaign.
"I wasn't strong enough, I wanted to ignore it, and I can't ignore it anymore.
"We need closure, I can't live with not knowing."
A tribunal held in the year following the fire, chaired by Justice Ronan Keane, was labelled flawed and the conclusion was contested by the victims' families.
He concluded the cause of the fire was probably arson.
In 2009, an independent examination into the tribunal reported there was no evidence to support Justice Keane's finding that the fire was started deliberately near the ballroom of the nightclub.
Families have campaigned for a fresh inquiry ever since the report, the latest rejection came late in 2017.
Antoinette Keegan, who lost two sisters in the fire, said: "We have huge political support across the board, except from Fine Gael and Fianna Fáil.
"The State have an obligation for a criminal investigation, in 37 years the victims have become insignificant.
"Finian McGrath refused to sign the postcard, he was elected saying he would support the campaign.
"We asked him for help and he's not giving it, he's not pushing it as far as he should be.
"We're a nuisance to this Government. They want us to go away.
"Leo Varadkar and Charlie Flanagan can get this inquest reopened and we won't be stopping until it is."
Mr McGrath rejected the claims.
"That is a complete distortion of my position on the Stardust Fire Tragedy.
"I met the families recently and said I would raise their concerns with the Attorney General and the Government."
Additional Reporting PA
