Arafat's death: Palestinian negotiator calls for international investigation

Al Jazeera continues its investigation into Yasser Arafat's death.

Research revealed that Arafat may have been killed by ingesting one microgram of radioactive polonium-210, around eight years ago.

Palestinian negotiator Saeb Erekat, who was Arafat's chief negotiator, calls for an international investigation committee to further investigate the matter.