Tensions are rising in the oil-rich east African nation of South Sudan after Riek Machar who serves as a vice president was arrested in the capital.

South Sudan's First Vice President Riek Machar is under arrest and will be investigated, the government said on Friday - the first official confirmation of a detention that world powers fear could tip the nation back into war.

What we are seeing is darkly reminiscent of the 2013 and 2016 civil wars,' says Antonio Guterres - Anadolu Ajansı

Residents of an area about 40 kilometers south of Khartoum welcomed army soldiers who reclaimed the area from the Rapid Support Forces paramilitary group.

Sudan’s army said Wednesday it had recaptured Khartoum’s international airport, and the military chief flew back to the capital for the first time in nearly two years of war, bringing the military closer to regaining full control of the city from the rival Rapid Support Forces paramilitary group.