Sinn Féin Senator Niall Ó Donnghaile has said the true story of what happened in the Loughinisland massacre "must be made public" after hosting a briefing in Leinster House with journalists Trevor Birney and Barry McCaffrey involved in making the film ‘No Stone Unturned’.

The film shone a light on collusion between the loyalist gang which murdered six men in the Heights Bar in Loughinisland, Co Down, in 1994 and British intelligence services.

Mr. McCaffrey and Mr. Birney, an Enniskillen born reporter, are currently on bail after they were arrested by police who accused them of possessing confidential documents.

Seanadóir Ó Donnghaile said: “The Police Ombudsman found that there were serious failings in the investigation into those responsible for the Loughinisland massacre and found that there had been collusion.

“The film ‘No Stone Unturned’ exposes the depth of collusion between the UVF killers of the six men in Loughinisland and the RUC and British intelligence agencies.

“However, instead of the PSNI following up on the evidence laid out in this documentary they have attempted to silence the journalists who have tried to uncover the truth."

The Sinn Fein representative added: “The arrests of Trevor Birney and Barry McCaffrey are an attack on free speech and are an insult to the Loughinisland Families who are still waiting, not only for justice, but a proper investigation into the murder of their loved ones.

“An Taoiseach must ensure the Irish State will do all it can to help protect press freedom investigating such matters and families that are still seeking justice for their loved ones.

“Sinn Féin will continue to support press freedom and families in their quest for justice."