Iran and the United States reached an understanding on the main "guiding principles" in a second round of nuclear talks in Geneva on Tuesday but work still needs to be done, Iranian Foreign Minister Abbas Araqchi said. The United States should immediately desist from threatening the use of force against Iran, Araqchi said on Tuesday. Araqchi was speaking at a disarmament conference in Geneva after talks were held between U.S. and Iranian representatives in the western Swiss city earlier in the day. Just as the talks got under way in Geneva, Iranian state media reported that parts of the strategic strait would close for a few hours due to "security precautions" while Iran's elite Revolutionary Guards conducted military drills there. Alongside Araqchi, U.S. envoy Steve Witkoff and Jared Kushner took part in the Geneva talks, which were being mediated by Oman, a source briefed on the matter told Reuters.