The Minister for Health has reiterated the Government's commitment to the construction of a National Children's Hospital and announced his intention to carry out a review of the project.

James Reilly told the Dáil that the review would take around four weeks to complete and that it would be carried out by an international team with medical, financial and managerial expertise.

He said he wanted a clear estimate of the costs involved as there were varying figures available from different sources.

The hospital is due to open on a site near the Mater Hospital in Dublin in 2015 at an estimated cost of €650m.

Sinn Féin's Health Spokesman Caoimhghín Ó Caoláin asked the Minister if expensive consultants would be employed in the review at the further expense of the taxpayer.

Minister Reilly said he shared Mr Ó Caoláin’s concerns about the costs of outside consultants.

However, he said his department was currently gathering all the information so that the review process could be carried out as quickly as possible.

Fianna Fáil's Billy Kelleher asked the Minister if he would park his publicly stated concerns about the hospital's location or if he would delay it further if the outcome of the review was not to his satisfaction.

The Minister said he had no intentions to delay the project and hoped that his concerns would be addressed by the review.

The new 16-storey hospital will have 445 beds and 13 operating theatres.