Olympic gold medallist Mo Farah has told ITV News London that his extended family will struggle if Barclays goes ahead with plans to shut systems that allow money transfers to accounts in Somalia.
Cash transfer businesses including Dahabshiil, the largest in the UK providing Somali services, were being closed over fears they were being used for money laundering.
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The major party leaders' campaigns for the General Election will remain suspended on Wednesday following the Manchester terror attack.
Thousands of people have donated to help the families of the victims - as well as a homeless man who came to their aid.
Some children, particularly those who have been more directly affected, may show symptoms of stress and trauma.