Iran's Foreign Ministry on Sunday accused Washington of trying to spread anti-Iranian sentiment in the Mideast by claiming that Iranian boats threatened US warships in the Persian Gulf. The Jan. 6 incident in the Strait of Hormuz between US and Iranian naval vessels has heightened tensions between Teheran and Washington. The US has said an Iranian fleet of high-speed boats charged at and threatened to blow up a three-ship US Navy convoy passing near Iranian waters. The Iranian naval forces vanished as the American ship commanders were preparing to open fire. "Some political factions in the US are pursuing adventurism to help Bush to spread Iran-phobia in the region," Hosseini said.