The Bank of Ireland has apologised after a glitch delayed payment of wages into customer accounts, a recurrence of similar problems experienced last month.
The bank said this morning that it was "urgently investigating" complaints that public sector workers, such as teachers, nurses and police, had not received payments.
The Irish bank claims that the problems, which also affected customers of other lenders such as AIB and Ulster Bank, have now been fixed, and all payments will be credited made by the end of the day.
"Bank of Ireland confirms that all other banks have now received any delayed payment originating from Bank of Ireland," a spokesperson said.
"Many of these payments have already processed and all credits will be in accounts by the end of today. The Bank extends an apology to those who experienced a delay today. No UK or NI payments were affected."
The Bank of Ireland was unable to confirm whether the delay was related to internal systems, or a wider industry problem.
Customers of the lender were affected by similar problems at the end of July, when a reported technical fault prevented payments to thousands of customers.
"What happened yesterday shouldn't have happened, it was an isolated case but it shouldn't have happened," said chief executive officer, Richie Bourcher, following the incident.
"The bank has made heavy investment in IT infrastructure, our systems are robust."
He added: "We are investing heavily and we need to, that is a component of our cost base."