A senior Israeli minister called on world powers on Sunday to set a deadline for military action of weeks to persuade Iran to halt its nuclear enrichment programme after talks ended without progress at the weekend. World powers and Iran failed again to end a deadlock in the decade-old dispute over Tehran's nuclear programme during the meeting in Kazakhstan, prolonging a standoff that could yet spiral into a new Middle East war. "Sanctions are not enough and the talks are not enough. The time has come to place before the Iranians a military threat or a form of red line, an unequivocal red line by the entire world, by the United States and the West ... in order to get results," Israeli Strategic Affairs Minister Yuval Steinitz said. Steinitz, a close confidant of Prime Minister Benjamin Netanyahu, told Army Radio action should be taken within "a few weeks, a month" if Iran did not stop enriching uranium, although he did not elaborate. Netanyahu himself has spoken of a mid-2013 "red line" for denying the Islamic Republic the fuel needed for a first bomb, although several Israeli officials have privately acknowledged it had been deferred, maybe indefinitely. The five permanent members of the U.N. Security Council - the United States, Russia, Britain, France and China - and Germany are trying to persuade Iran to abandon its higher-grade uranium enrichment, as a first step to a broader deal. Refined uranium can be used to power atomic reactors, Iran's stated aim, or provide material for weapons if processed more.