Enda Kenny says he does not see any reason why the inquiry into transactions at IBRC should collapse.
But the Taoiseach says no action will be taken to extend the inquiry's powers until it submits its interim report next week.
He has ruled out the prospect of abandoning the inquiry and setting up a tribunal with full powers of compellability.
But he says the inquiry will not be collapsed, and he will do everything he can so it can investigate the matters it is supposed to.
"I don't expect that the inquiry should collapse just as Cregan has requested, until I have received the interim report, obviously he's working on that.
In the meantime Attorney General's office are looking at a range of options that have been referred to."