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Yasser Arafat poisoning claims to be investigated

11 July 2012 Last updated at 04:10 BST

Palestinian officials are calling for an international inquiry into former leader Yasser Arafat's death, over renewed claims that he was poisoned.

Swiss scientists told an al-Jazeera TV documentary that the radioactive material polonium-210 was on belongings given to his widow after he died in 2004.

Arafat's medical records say he had a stroke resulting from a blood disorder.

Wendy Urquhart reports.