Barclays bank says changes in the way customers use its branches is behind the decision to cut up to 1,700 jobs.
In a statement it said that new technology meant that fewer everyday transactions were now done in high street branches.
The bank said it would provide a better service with less staff.
It has started a voluntary redundancy scheme.
The way in which our customers access their banking services is changing rapidly.
More and more people are choosing to use smartphones and technology for everyday transactions - using branches only when they need access to expertise.
As a result of technological changes, we will be able to provide better service for our customers with fewer staff in our branches.
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