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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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Momentum appears to build toward military action

The global impact of the latest beheading of a western hostage is starting to take shape as leaders arrive in Wales for a summit beginning tomorrow.

David Cameron is refusing to rule out British air strikes against Islamic State, while US politicians have been increasingly vocal in their threats against the radical group.

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