Tehran, June 17 (IANS) The international eco**mic sanctions on Iran should be completely lifted when a nuclear agreement with the P5+1 group of world powers enters into effect, one of Tehran's top nuclear negotiators, Abbas Araghchi, said on Wednesday. "One of the most important let open parentheses is simultaneousness of termination of sanctions with Iran's moves (to limit its nuclear programme)," state-run IRNA news agency quoted Araghchi as saying. Araghchi remarked that Iran and the P5+1 group -- the US, Britain, China, Russia, France plus Germany -- were going to discuss the matter as in previous rounds of negotiations held in Vienna.