BEIJING, Aug. 9 -- The United States says it considers reports that Iran has restarted nuclear activities "unfortunate" and would expect Tehran to be taken before the United Nations.

    A US State Department official, who asked not to be named, made his comments after the vice president of Iran's Atomic Energy Agency announced the resumption of uranium conversion at its Isfahan plant despite warnings by the international community.

    The US official added that he expected a board meeting of the International Atomic Energy Agency (IAEA) on Tuesday to take "appropriate action."

    The move by Iran, which Washington accuses of seeking nuclear arms, came despite an effort by Britain, France and Germany to wean Tehran off its ambitions with economic and security incentives.

    The Islamic Republic rejected as "unacceptable" the latest offer that would have allowed it to retain a civilian nuclear capacity but barred it from enriching uranium that could be used in a bomb.

    (Source: CRIENGLISH.com)