South Sudan's First Vice President Riek Machar has accused Uganda of violating a United Nations arms embargo by entering the country with armoured and air force units, and conducting airstrikes there.

South Sudan’s embattled vice president said the deployment of Ugandan troops in his country violates a United Nations arms embargo and risks collapsing a peace accord, as the UN warned the oil-producing nation is on the brink of civil war.

The arrest of South Sudan’s First Vice President, Dr Riek Machar, has further deepened tensions between the country’s top political figures, raising concerns about renewed instability. According to media reports,