Abdel Nasser led the first emergency Arab League summit in Cairo on 21 September. Arafat's speech drew sympathy from attending Arab leaders. Other heads of state took sides against Hussein, among them Muammar Gaddafi, who mocked him and his schizophrenic father King Talal. On 27 September, Hussein and Arafat signed an agreement brokered by Egyptian President Nasser. Nasser died the following day, of a heart attack. The Jordanian army regained control of key cities and intersections in the country before accepting the ceasefire agreement brokered by Egypt's Nasser. Hussein appointed a Palestinian, Ahmad Toukan, as prime minister, instructing him to "bandage the wounds". In the period following the ceasefire, Hussein publicly revealed that the Jordanian army had uncovered around 360 underground PLO bases in Amman, and that Jordan held 20,000 detainees, among whom were "Chinese advisors". Role of Pakistani Zia-ul-Haq and Iranian leftist guerillas The head of a Pakistani training mission to Jordan, Brigadier Muhammad Zia-ul-Haq (later Chief of Army Staff and President of Pakistan), was involved on the Jordanian side. Zia had been stationed in Amman for three years prior to Black September. During the events, according to CIA official Jack O'Connell, Zia was dispatched by Hussein north to assess Syria's military capabilities. The Pakistani commander reported back to Hussein, recommending the deployment of a RJAF squadron to the region. O'Connell also said that Zia personally led Jordanian troops during the battles. Two Iranian leftist guerilla organizations, the Organization of Iranian People's Fedai Guerrillas (OIPFG) and the People's Mujahedin of Iran (PMOI), were involved in the conflict against Jordan. Their "collaboration with the PLO was particularly close, and members of both movements even fought side by side in Jordan during the events of Black September and trained together in Fatah camps in Lebanon". On 3 August 1972, PMOI operatives bombed the Jordanian embassy in Tehran during King Hussein's state visit as an act of "revenge" for the events of Black September. Casualties Arafat claimed that the Jordanian army killed 25,000 Palestinians—other estimates put the number at between 2,000 and 3,400. The Syrian invasion attempt ended with 120 tanks lost, and around 600 Syrian casualties. Jordanian soldiers suffered around 537 dead. Post-September 1970 Another agreement, called the Amman agreement, was signed between Hussein and Arafat on 13 October. It mandated that the fedayeen respect Jordanian sovereignty and desist from wearing uniforms or bearing arms in public. However it contained a