Updated 11:45
A full investigation into the cause of a technical fault at the Corrib Gas Refinery is to be carried out after around 10,000 thousand homes in Galway and Mayo were affected.
An error allowed gas to enter supplies, without the odour which is normally added for safety reasons.
Customers in Galway City were allowed to turn on their supplies once again yesterday evening.
Technical teams are working flat out to restore gas supply to the remaining areas including Tuam, Headford, Ballinrobe, Claremorris, Castlebar, Westport, Crossmolina and Ballina.
In a statement this morning, Gas Networks Ireland (GNI) said it is working to restore the gas supply to these areas within 24 hours.
Customers will be informed as soon as their area is restored and when it is safe to turn their gas supply back on.
Full investigation
The Commission for Energy Regulation (CER) has pledged to carry out a full investigation into the circumstances leading to the fault.
It warned however that restoring odorised gas is the first priority, before any investigation can begin.
Gas Networks Ireland safety manager Owen Wilson had this latest update this morning:
“Last night we were able to check and make sure that there were no pockets of un-odorised gas in the Galway, Salthill, Oranmore and Claregalway areas and we were able to bring customers back on there,” he said.
“What we will be doing over the weekend now is working our way north following the odorised gas basically that has been pushed north and doing the same with other communities
“Checking that there are no pockets of [un]odorised gas in the distribution pipe network.”
The company has apologized for the inconvenience caused by the error adding that "safety is our first priority in operating the network."