Bank of Ireland says all affected accounts have been credited after a mass glitch today.

The bank says it has worked throughout the day to identify and rectify the issue, which began early this morning.

"We are communicating this to customers across all of our channels, and we again apologise sincerely for any inconvenience caused today," a statement released this evening read.

Dozens of people and customers have taken to social media to vent their frustration after their wages were not transferred to their accounts today.

Bank of Ireland says it is providing customer support through its digital channels, telephone support services and branch network.

It is understood social welfare recipients have not been affected, and no fees will be applied to any direct debit or standing order payments which are missed because of the payments issue.