US Secretary of State John Kerry has said that US raids in Africa are a signal that the US "won't forget attacks and won't relent in fighting terrorism."
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More than 80 prominent Britons, including Boris Johnson, Russell Brand and former Government ministers, urge Obama to release Aamer.
Thundery overnight with a Met Office warning for rain in place for a large swathe of the country. Quite sunny throughout tomorrow.
Video shot in Islamic State capital Raqq purportedly shows at least two of three missing London schoolgirls.