UNITED NATIONS, July 2 (Xinhua) -- Iran's decision to suspend cooperation with the International Atomic Energy Agency (IAEA) is concerning, said a UN spokesman on Wednesday.

WASHINGTON, July 2 (Xinhua) -- The Pentagon said Wednesday that U.S. strikes last month on three key Iranian nuclear facilities have set back Tehran's nuclear program by as much as two years.

Iran on Saturday reopened its airspace in central and western areas to international transit flights. The country closed its airspace on June 13 following Israeli airstrikes on Tehran and other areas.