South African President Thabo Mbeki will accept a call to resign by the governing African National Congress (ANC), his spokesman has said. Mukoni Ratshitanga said Mr Mbeki would leave his post once "all constitutional requirements have been met". It comes days after a High Court judge suggested that Mr Mbeki may have interfered in a corruption case against his rival, ANC leader Jacob Zuma. Mr Zuma was expected to succeed Mr Mbeki in scheduled elections next year. Mr Mbeki has called for his cabinet to meet on Sunday. Parliament is expected to meet in the coming days to formalise the resignation, and is likely to appoint the parliamentary speaker as interim leader. The decision to call for Mr Mbeki's early resignation was taken at a meeting of the ANC's National Executive Committee (NEC). The ANC's Secretary General Gwede Mantashe said the move had followed "a long and difficult discussion". He said Mr Mbeki, who has ruled for more than a decade, "did not display shock" at the decision and had agreed to participate "in the process and the formalities". The decision had been taken for "stability and for a peaceful and prosperous South Africa", Mr Mantashe told a news conference. The ANC secretary general said this was not punishment for Thabo Mbeki, adding that the president would be given the chance to continue his role as mediator in Zimbabwe. At the same time, ANC cabinet members are being urged to remain in government to ensure continued stability.