DUBAI - Iran's supreme leader has said Saudi Arabia should apologize for a crush outside the Muslim holy city of Mecca that killed 769 worshippers performing the annual haj pilgrimage, Khamenei's website said on Sunday."This issue will not be forgotten and the nations will pursue it seriously. Instead of accusing this and that, the Saudis should accept the responsibility and apologize to the Muslims and the victims' families," Ayatollah Ali Khamenei was quoted as saying."The Islamic World has a lot of questions," he said. Iranian officials have said they believe more than 1,000 pilgrims were killed in the disaster.