"We certainly do not agree with the suspension of any OIC member, " Iranian Foreign Minister Ali Akbar Salehi said after a preliminary meeting in the city of Jeddah on Monday.

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Before his suspension, the former Brent East MP had been a member of the Labour party for 31 years.

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Ian Leahair, the FBU's executive member for London, said colleagues were "outraged" at the suspension and were supporting demands for Ms Griffiths' immediate reinstatement.

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