Quadrilateral meeting of Iran, Pakistan, Turkey and Saudi Arabia begins a quadrilateral meeting that began in Tehran at the suggestion of Pakistan and with the cooperation of Iran. Maj. Gen. Mohsen Razai, secretary of Iran's Supreme National Security Council, is hosting, with Pakistan's army chief Asim Munir, Saudi Defense Minister Khalid bin Salman, and Turkey's intelligence chief Ibrahim Kalin representing their countries. Regional security, the consequences of military aggression, continued aggression and aid to the oppressed residents of Palestine and Lebanon are among the topics of discussion.