UK-based retail and commercial bank TSB has been hit with fresh IT outage as customers complained that they are unable to access online banking services for several hours.

The technical glitch is the second such incident in the last two months when the bank tried to upgrade its IT platform that left numerous customers unable to access their accounts.

The bank issued an apology for this outage and said that it has been resolved.

A TSB spokesperson Tweeted: “We’re really sorry that some of our customers experienced intermittent issues with online banking for a short period this morning.

“This issue has now been fixed and our services are working as normal.”

However, several customers took to social media to complain that they were still unable to access their accounts

The incident happened when the bank is returning to normalcy following a failed attempt to transfer data to a new IT system.

During the attempt, thousands of TSB customers were reported to have been locked out of their accounts for more than a week.

Last month, a committee comprising parliament members met the TSB board regarding the removal of the bank’s chief executive Paul Pester.

In April, TSB parent company Banco Sabadell announced to have registered a net profit of €253.9m in the first quarter of fiscal 2018, a jump of 32.9% from the previous year’s same period.

The impact of the botched up upgrade is expected in the first-half results, scheduled to be published later this month.