Palestinian security forces guard the convoy of Palestinian leader Mahmud Abbas upon his arrival in the West Bank city of Jenin to visit the Arab-American University on October 13, 2009. Abbas' Fatah movement has agreed to an Egyptian proposal for the two main Palestinian factions to separately sign a long-delayed unity deal by October 15, a senior party official said on October 13. But relations between the group and its Islamist Hamas rivals remain toxic, with Abbas, who heads Fatah, accusing Hamas of stalling the talks and trying to preserve its 'black coup' in the Gaza Strip.