The United States and South Sudan have been embroiled in a diplomatic spat since Juba refused to admit a man deported from the US last week, saying that he was actually a Congolese citizen using the travel documents of a South Sudanese national.

Following the refusal, US Secretary of State Marco Rubio accused South Sudan of "taking advantage of the United States." In a statement, Rubio said that, "Every country must accept the return of its citizens in a timely manner" when the US seeks to remove them.

As South Sudan's transitional government "has failed to fully respect this principle, effective immediately, the United States Department of State is taking actions to revoke all visas held by South Sudanese passport holders," the statement continued.

Rubio added that the measures would be reviewed "when South Sudan is in full cooperation."

South Sudanese President Salva Kiir and his opponent Vice President Riek Machar formed the joint transitional government in 2020, which is now on the........

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