Swiss scientists who conducted tests on samples taken from Yasser Arafat's body have found at least 18 times the normal levels of radioactive polonium in his remains.

The scientists said that they were confident up to an 83 percent level that the late Palestinian leader was poisoned with it, which they said "moderately supports' polonium as the cause of his death.

A 108-page report by the University Centre of Legal Medicine in Lausanne, which was obtained exclusively by Al Jazeera, found unnaturally high levels of polonium in Arafat's ribs and pelvis, and in soil stained with his decaying organs. The Swiss scientists, along with French and Russian teams, obtained the samples last November after his body was exhumed from a mausoleum in Ramallah in the occupied West Bank.

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