A letter seen by ITV News shows that HSBC has given notice that it will close the bank account of Finsbury Park mosque because it "now falls outside of our risk appetite".
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Chelsea had planned an open top bus tour to show off the Premier League trophy and hope to add the FA Cup in Saturday's final with Arsenal.
"If I could find love with the poem, I'd be very grateful and happy", said Rajinder Tumber.
The venue says it is in contact with promoters about a final decision, following the terror attack at the singer's concert on Monday.