The U.N. atomic agency board on Friday gave Iran until Oct. 31 to disprove suspicions about its nuclear program, setting the stage for possible U.N. Security Council action if it doesn't comply. Iran's delegation walked out of the International Atomic Energy Agency's board of governors meeting in protest after a resolution containing the deadline passed. Iranian officials had repeatedly warned that imposing a deadline would aggravate nuclear tensions. "We reject in the strongest terms this resolution," chief Iranian delegate Ali Akbar Salehi said in a prepared statement. "Unfortunately the sponsors of the draft reacted in total disregard for principles of multilateralism and did not entertain our amendments." The resolution, submitted by Australia, Canada and Japan, calls on Iran to "provide accelerated cooperation" with agency efforts to clear up Tehran's nuclear question marks. The board approved the resolution without a vote, diplomats said. But the measure had the support of the United States, and more than 20 members of the 35-nation board had indicated they would vote in favor. Salehi said the resolution reflected territorial designs on the part of the United States. "At present, nothing pervades their appetite for vengeance short of confrontation and war," his statement said. "It is no secret that the current U.S. administration, or at least its influential circle, entertains the idea of invasion of yet another territory, as they aim to re-engineer and re-shape the entire Middle East region." Salehi said Iran would review its cooperation with the U.N. agency in light of the resolution. Chief U.S. delegate Kenneth Brill said that decision alone is cause for concern. "I think that suggests they have something to hide that they do not want to come to light," he said. **PHOTO CAPTION*** Head of the U.S. delegation Kenneth Brill speaks during a news briefing after the International Atomic Energy Agency (IAEA) board of governors meeting at the Vienna International Center, on Friday, Sept. 12, 2003. (AP Photo/Ronald Zak)