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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Sympathy for Sotloff family and anger at White House

In the United States, the murder of Mr Sotloff was greeted with anger by the White House, and sympathy for his family.

President Obama is heading to Europe this week - where he'll discuss how to combat the threat of Islamic State, at the Nato summit in Cardiff.

But as ITV News correspondent Robert Moore reports from Washington, he will leave behind a mother whose appeal to save her son went unanswered:

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