Farouk Kaddoumi, a Palestine Liberation Organisation (PLO) official, has told Al Jazeera he stands by documents that he says show that Mahmoud Abbas, the Palestinian president, was involved in a conspiracy to assassinate Yasser Arafat, his predecessor.

Abbas’s Fatah party has dismissed Kaddoumi’s claim that Abbas had in a meeting with Ariel Sharon, the ex-Israeli prime minister, discussed Arafat’s killing.