Iran's Foreign Ministry says demands by the International Atomic Energy Agency to revisit a military site where Iran is suspected of conducting nuclear-related experiments are still on the table.

Inspectors from the U.N. nuclear watchdog are expected to arrive in Tehran for talks Wednesday in the hope of restarting a probe into Iran's disputed nuclear program.

The agency in particular wants to visit Parchin, a military site southeast of Tehran, where Iran is suspected of testing components needed to develop nuclear weapons. Iran denies any such activity.

Iranian Foreign Ministry spokesman Ramin Mehmanparast said Tuesday that "the discussion over visiting Parchin could be part of a deal" with IAEA inspectors.

Mehmanparast also said that Iran was converting some of its higher-grade enriched uranium into reactor fuel, which would be slowing the growth in stockpiles of materials that could be used to make nuclear weapons, Reuters reported.

The possibility of Iran converting enriched uranium into fuel is one possible way in which the nuclear dispute between Iran and the West could avoid hitting a crisis by the summer.

Tehran could otherwise have amassed sufficient stock by June to hit the "red line" set by Israel, after which it has indicated it could attack to prevent Iran acquiring enough fissile material for a nuclear weapon.