Yasser Arafat's widow has called for the late leader's body to be exhumed after new allegations that he was poisoned with Polonium a known radioactive element in 2004.

In an interview with al Jazeera she appealed to the Palestinian government to exhume the body.

Doctor's in Switzerland examine Arafat's clothes, which were found to contain traces of the radioactive substance.

Polonium is the he same substance was used to kill former Russian KGB agent turned dissident Alexander Litvinenko, who died in 2006 in London after drinking tea laced with the radioactive substance.

Claims that Arafat was assassinated surfaced soon after his death, with many pointing the finger at Israel's spy agency Mossad. Eight years after the Palestinian leader died it remains unclear exactly what caused his death. Cirrhosis of the liver, cancer, and Aids have been suggested as the cause of death in the past - but doctors in Switzerland ruled them out.

Written and Presented by Ann Salter