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The Ulster Bank is to open 10 branches on 12 July, a traditional bank holiday in Northern Ireland.

Thousands of customers across the island of Ireland have been affected by a computer failure at the bank's parent company RBS on 19 June.

It is the first time ever that Northern Ireland branches will remain open during the holiday, which marks the 1690 Battle of the Boyne.

The bank said most problems would be resolved by its 16 July deadline.

Problems persist for many customers as they are unable to get accurate statements about how much money they have in their accounts.

The bank said it could not put a figure on how many of its customers in Northern Ireland were still affected by the crisis.

The 10 branches remaining open on 12 July are:

Its head of retail banking, Stephen Cruise, said they were making progress.

"We believe the majority of the problems will be fixed by 16 July, but obviously we need to spend this week proving that," he said.

"On one occasion we got some duplicate transactions on accounts, so it's important we tidy that up and I want to apologise to customers for the inconvenience."