Armed Fatah militants of the Al Aqsa Martyrs' Brigades, a group linked to the Fatah Movement, are seen at the municipal building of the West Bank city of Nablus, Sunday, April 23, 2006. Dozens of Palestinian gunmen loyal to President Mahmoud Abbas stormed the Nablus municipal building Sunday and gave the mayor, who is from the rival Hamas group, half an hour to shut down his offices in a reaction against comments made by Khaled Mashaal, head of Hamas' political wing, accusing Abbas of treachery. (AP Photo/Nasser Ishtayeh)