The Treasury secretary is the second top U.S. official not to attend the Group of 20 gatherings because of rising tension with South Africa over its land policies.

South Africa's Finance Minister Enoch Godongwana has been forced to postpone the unveiling of the national budget following sharp disagreements within the coalition government. Coalition partners derailed his budget after opposing his plan to raise value-added-tax (VAT),

The South African government's annual presentation of its budget was abruptly canceled Wednesday and rescheduled for next month over a dispute among parties in the governing coalition. The finance minister's budget speech normally takes place in February.