The Tánaiste has called for an independent investigation into allegations that Dublin City Council paid protection money to gangs.
The case is before the High Court where it's alleged three building firms paid protection to a violent criminal.
Three construction companies, working for the local authority, allegedly handed over up to €1500 a week to stop sites and staff from being intimidated.
The High Court has been told Dublin City Council was aware the money was being paid to criminals in Cherry Orchard in 2016 and 2017.
The court also heard a claim that the Council recommended the protection money be handed over so work on building new homes could continue.
In a statement, Dublin City Council said it "does not condone the payment of protection money by any of its contractors".
Simon Coveney has confirmed his office was made aware of the claims in 2017 when he was Housing Minister - but says it was never raised with him personally.
Minister Coveney says there needs to be a full investigation of the allegations: "I think because of the accusations and the seriousness of them, we need a completely independent investigation from Dublin city council so that we can establish exactly what happened and when and who knew what so we can ensure so we can understand what happened here and to make sure it doesn't happen again."