US President George W. Bush makes the commencement address at the US Merchant Marine Academy at Kings Point in New York June 19, 2006. -Xinhua/Reuters

US President George W. reiterated yesterday that Iran must suspend all uranium enrichment-related activity or it will face sanctions by the United Nations Security Council.

Iran must "fully and verifiably suspend its uranium enrichment and reprocessing activities," Bush said in a commencement speech to the graduating class of the U.S. Merchant Marine in Kings Point, New York.

"Iran's leaders have a clear choice: We hope they will accept our offer and voluntarily suspend these activities so we can work out an agreement that will bring Iran real benefits," Bush said.

"If Iran's leaders reject our offer, it will result in action before the Security Council, further isolation from the world and progressively stronger political and economic sanctions."