Ayatollah Ali Montazeri said Tuesday he would not be the successor of Iranian leader Ayatollah Ruhollah Khomeini, Tehran radio reported. Montazeri reportedly told Khomeini in a letter that he was not ready to be Khomeini's successor. Khomeini thanked Montazeri for the decision, saying that even when Montazeri was designated as his successor by the Council of Experts, he had opposed the choice. The move came amid signs of a major shakeup in the Iranian Foreign Ministry. It closely followed the resignations of Mohammad Jaafar Mahallati, Iran's ambassador to the United Nations, and Javad Larijani, an assistant foreign minister for European and American affairs.