Amid diplomatic tensions between host South Africa and the Trump Administration, the U.S. will be represented at a meeting of foreign ministers by the acting ambassador to South Africa.

U.S. Secretary of State Marco Rubio will skip a meeting of foreign ministers from the leading rich and developing nations, known as the Group of 20, that starts on Thursday.

Analysts say US boycott could benefit other big powers, such as Russia and China, whose foreign ministers will be attending