The Taoiseach has again ruled out an independent inquiry into the payment of top-ups to some health managers.
Enda Kenny said the HSE does not need outside help to get to the bottom of the arrangements made by some health agencies.
He rejected calls from Sinn Féin leader Gerry Adams to put the investigation into outside hands.
"If we're to follow your logic here, and have another 'independent inquiry', you'd still be inquiring in three or four years time," he told Adams in the Dáil.
"[The] Minister for Health has given a specific instruction to the HSE to call in the [relevant] agencies tomorrow."
Mr Kenny said the HSE is meeting the heads of some health agencies to discuss the pay of their senior managers, and the CRC will appear before the Public Account Committee tomorrow.
"I expect that there will be frank exchanges at all of these meetings," the Taoiseach said.