Letter sent by board reveals €83m spend on Children's Hospital building costs in five months

Taoiseach Leo Varadkar has been urged to "guarantee" the cost of the new children's hospital will not exceed €2bn after the project's board admitted the full price will not be known until construction work is completed.

The new transparency demand was made after hospital officials said there "cannot be price certainty" until the project finishes and confirmed they have appointed a "conciliator" to address "significant potential costs" and "additional [price] claims".