RIYADH: Iran will reopen its diplomatic missions in Saudi Arabia this week, the Iranian foreign ministry spokesman said on Monday.   Tehrans foreign ministry spokesman Nasser Kanani announced the reopening in a statement Monday, confirming earlier comments by a diplomatic source in Riyadh. “To implement the agreement ..., Iran’s embassy in Riyadh, our Consulate General in Jeddah and our office to the Organization of Islamic Cooperation will be officially reopened on Tuesday and Wednesday,” spokesman Nasser Kanaani said. The diplomatic mission will return under the leadership of Alireza Enayati, who previously served as Irans ambassador to Kuwait. The step comes several months after Tehran and Riyadh agreed to end years of antagonism under a Chinese-brokered deal. In March, Iran and Saudi Arabia agreed to re-establish relations between the regional rivals whose hostility had threatened stability and security in the Middle East and helped fuel regional conflicts from Yemen to Syria.