In October–November 2016, Burundi, South Africa, and The Gambia all notified the UNSG of their intention to withdraw from the ICC. Burundi was the subject of an ongoing preliminary investigation by the ICC at the time. South Africa's exit followed its refusal to execute an ICC warrant for Sudan's al-Bashir when he was in the country. Following The Gambia's presidential election later that year, which ended the long rule of Yahya Jammeh, The Gambia rescinded its withdrawal notification. The constitutionality of South Africa's notice was challenged by the Democratic Alliance opposition party, which argued that the approval of parliament was required and not sought. The High Court of South Africa ruled in February 2017 that the government's notification was not legal, and it was required to revoke the notice effective 7 March 2017. A parliamentary bill on ICC withdrawal was subsequently withdrawn by the government. However, the governing African National Congress party still supports withdrawing, and in 2019 a new bill was put before Parliament to withdraw from the Statute.