Tawfiq Tirawi, head of the Palestinian commission investigating Arafat's death, said: "If it is proved that Arafat was poisoned, we will go to the international court."
His remarks were made at a press conference which took place several hours after the veteran leader's remains were exhumed for testing by a team of international experts.
The removal of the samples was conducted by a Palestinian doctor in the presence of experts from Switzerland, Russia and France.
Comments