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Memorial service held for IS victim Steven Sotloff

Nearly 1,000 mourners including relatives, friends and politicians, have attended a memorial service in Florida for US journalist Steven Sotloff, who was killed by IS militants.

The Islamic State released a video on Tuesday showing the murder of Mr Sotloff.

He is the second American journalist to be beheaded in two weeks over the group's confrontation with the US over air strikes in Iraq and its foreign policy.

Footage of James Foley being beheaded on August 19 shocked the world.

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Prime Minister 'not ruling anything out' in Iraq

Prime Minister David Cameron has said he is "not ruling anything out" with regard to the Islamic State (IS) insurgency in Iraq and Syria.

He told Good Morning Britain that it was vital that any steps taken by western powers were not "over the head" of local efforts to combat IS.

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