Lloyds chief executive Antonio Horta-Osario says TSB has "a strong balance sheet" and is well protected from the issues that caused the banking crisis.
TSB has a national network of branches, a strong balance sheet and significant economic protection against legacy issues.
It is already operating on the UK high street and is proving to be a strong and effective challenger, further enhancing competition in the UK banking sector.
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Penny Mordaunt called it an “historic and great” day for Ireland.
A 61-year-old woman was taken to hospital with head injuries after the incident in Islington, north London.
Counting will begin on Saturday morning, with the result expected later in the day.