NEW YORK (Reuters) - Russia s U.N. Ambassador Vassily Nebenzia said on Tuesday that a U.S. aim for the United Nations Security Council to vote on Monday on new sanctions on North Korea over its latest nuclear test is  a little premature.   I don t think we ll be able to rush it so fast,  Nebenzia told reporters. U.S. Ambassador to the United Nations Nikki Haley has said she wanted the 15-member council to vote on Sept. 11 on a U.S.-drafted resolution to impose new sanctions on Pyongyang after it conducted its sixth and largest nuclear test on Sunday. 