The cause of Yasser Arafats death is still a matter of debate. A leader of Fatah and a nephew of Arafat said that an investigation indicated a "high possibility of poisoning" but that there was not any proof. According to Israel Radio, a former Palestinian intelligence officer, attorney Fahmi Shabana, said that Yasser Arafats political rivals were responsible for his death, and that he was poisoned with polonium. In 2012, Al Jazeera reported that a nine-month investigation by Al Jazeera had revealed that none of the causes of Arafats death suggested in several rumors were true, as Arafat was in good health until he suddenly fell ill on 12 October 2004. In 2013, a Swiss forensic report obtained by Al-Jazeera suggested that Arafat may have been poisoned with radioactive polonium. However, in 2013, French investigators concluded that Arafat died of natural causes. In 2021, the widow and daughter of Yasser Arafat lost an attempt to reopen an investigation into his death. Therefore, the exact cause of Yasser Arafats death remains unknown and is still a matter of debate.