Pro-Russian activists in eastern Ukraine have decided to go ahead with a referendum on autonomy on Sunday, despite a call from Russian President Vladimir Putin to postpone it. The move was announced by separatist leaders after consulting supporters. On Wednesday, Mr. Putin called for a postponement to create the conditions necessary for dialogue. Ukrainian authorities say they will disregard the results and that "anti-terror" operations will continue. Millions of ballot papers have been prepared for the vote.