The Public Accounts Committee is to contact the gardaí over "serious allegations" made against people linked to Rehab.

It's to pass on a letter received from developer John Kelly, which the committee says outlines possible criminal offences.

The letter, sent through the developer's solicitors earlier this week, makes allegations against people currently, and formerly, linked to the Rehab Group.

Committee chairman John McGuinness says the PAC doesn't have the right to release the contents of Mr Kelly's letter:

Meanwhile, it emerged earlier that the PAC is expected to call senior executives from Rehab back in for a further hearing.

TDs are understood to be unhappy with documents sent in by Rehab following its last hearing two weeks ago.

The committee had asked Rehab to supply details of the pension paid to its former chief executive Frank Flannery.

Mr Flannery has separately written to the committee saying he has no problem appearing before it, but that he did not think he had been invited to attend at its hearing last month.