On 13 January 1986, a violent struggle began in Aden between Ali Nasir's supporters and supporters of the returned Ismail, who wanted power back. Fighting, known as the South Yemen Civil War, lasted for more than a month and resulted in thousands of casualties, Ali Nasir's ouster, and Ismail's death. Some 60,000 people, including the deposed Ali Nasir, fled to the YAR. Ali Salim al-Beidh, an ally of Ismail who had succeeded in escaping the attack on pro-Ismail members of the Politburo, then became General Secretary of the Yemeni Socialist Party.