PARIS - Yasser Arafat's widow will launch a court case in France into the unexplained death of the iconic Palestinian leader eight years ago after a media report suggested he may have been poisoned, her lawyer said on Tuesday.

Allegations of foul play have long surrounded Arafat's demise in November 2004 after French doctors who treated him in his final days said they could not establish the cause of death.

The controversy was reignited by an Al Jazeera expose last week in which the Swiss Radiophysics Institute said it found "surprisingly" high levels of polonium-210 on Arafat's clothing - the same substance used to kill former Russian spy Alexander Litvinenko in London in 2006.

The Swiss institute said, however, that the symptoms described in the Palestinian president's medical reports were not consistent with the radioactive agent.

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