Moussa Ag Asherif, a top member of Ansar Dine said the original accord had been merely a basis for working discussions and that the deal was on a "take it or leave it" basis Regional and Western leaders have long feared a breakaway state in Mali's restive north could become Al-Qaeda's main safe haven and the group's north Africa branch has already offered advice to Ansar Dine on creating an Islamist state.