The Provisional IRA has withdrawn from the scheme to decommission its weapons.
In a strongly worded statement released tonight, the republican paramilitary group accused the Irish and British governments of changing the basis of the peace process.
The statement was issued to the An Phoblacht newspaper before 9pm, and was signed by P O'Neill.
It rejected claims by the two governments in relation to continuing paramilitary and criminal activity. The IRA said its patience has been tried to the limit, and that it is ' taking all [our] proposals off the table'.
The statement added: 'The IRA has demonstrated our commitment to the peace process again and again. We want it to succeed. We have played a key role in achieving the progress achieved so far.
'We will not betray the courage of the hunger strikers either by tolerating criminality within our own ranks or false allegations of criminality against our organisation by petty politicians motivated by selfish interests, instead of the national need for a successful conclusion to the peace process'.
It concluded: 'We freely acknowledge our responsibility to enhance genuine efforts to build peace and justice.'
Progress depends on IRA - Ahern
Earlier today, the Taoiseach told the Dáil there can be no progress in the peace process until the Republican movement supplies clear answers on the issues of decommissioning, paramilitarism and IRA criminality.
Answering questions from Fine Gael’s Enda Kenny, Bertie Ahern said the PSNI Chief Constable and the Garda Commissioner were clearly of the view that the IRA had carried out the Northern Bank robbery.
He added that they also believed the IRA was responsible for other operations in 2004, including the major robbery at a warehouse in south Belfast.
Mr Ahern accepted a suggestion from Mr Kenny that that meant that Sinn Féin had been negotiating in bad faith during that period.
