Expert attempts to stop the flow of water at Tara Mines in Navan, Co Meath have been successful and the water flow has been brought under control.
Production had been stopped for over a week when the mines started to flood following the drilling of a bore hole for a ventilation shaft.
The mines employ 580 people.
In a statement this morning, owners Boliden said work is now beginning to “restore the mine”, which includes pumping and mapping of any damage as a result of the flooding.
The company said it is unclear when normal production can resume “as water accumulations need to be removed, and a survey of damages to the mine infrastructure must be carried
It added no one has been severely injured and no impact on the external environment has been registered, however it said the situation is being monitored.