Fallujah, apr 29: Thirteen Iraqis were killed and 45 wounded when US troops opened fire on demonstrators brandishing photographs of Saddam Hussein on the ousted strongman's 66th birthday last evening, witnesses told bureau. "The shooting broke out when 500 protestors carrying portraits of Saddam and Iraqi flags approached a school manned by US troops," said Mohammed Hamid, a resident of this town 50 Kms west of the capital. Another witness who asked not to be identified said the US soldiers were "not threatened by the demonstrators who were celebrating the former President's birthday". Of the 13 dead who were swiftly buried today morning in accordance with Islamic tradition, six were children aged just seven or eight, the second witness said. Bureau Report