The U.N. nuclear agency has started new talks with Iran aimed at getting access to what it suspects was the site of secret tests to make nuclear arms.
The International Atomic Energy Agency thinks the site at Iran's Parchin military facility was used to test explosives needed to set off a nuclear charge. Iran denies this and all suggestions it wants such weapons.
Senior IAEA official Herman Nackaerts said Monday the agency's priority remains "clarification (of) the possible military dimensions" of Iran's nuclear activities.
The agency has for months been refused access to the site and to officials the IAEA suspects could have been involved in such activities.