Israel and Iran took part in an international conference on nuclear disarmament last month in Egypt — a gathering that is now prompting media reports the two foes held direct discussions that included an awkward exchange on whether the Jewish state has atomic weapons.

An Israeli official confirmed Thursday the two sides attended the conference but denied they talked face-to-face. Iran also denied any direct meetings, which would be unheard of between the arch enemies.

However, Australia''s The Age newspaper quoted participants as saying that the rivals had a "very robust exchange" during the two-day event in the Egyptian capital. Israel''s Haaretz daily also reported Thursday the two sides met.

The meeting was held by the International Commission on Nuclear Nonproliferation and Disarmament, set up by the governments of Australia and Japan to probe ideas on how to cut the world''s nuclear arms stockpile ahead of a U.N. conference on the subject next year.