The justice minister on Thursday said Riek Machar, South Sudan’s Vice-President has been charged with murder, treason and crimes against humanity over an attack on a military base that killed more than 250 soldiers.

A fragile power-sharing agreement between President Salva Kiir and his first vice-president, Machar has been unravelling for months in the world’s youngest country.

In early March, a militia from Machar’s ethnic Nuer community, known as the White Army, attacked a military base in Nasir County, Upper Nile State in the northeast of the country.
The military base in Nasir was overrun by the White Army between March 3 and 7.

Several senior officers including a general died and a United Nations helicopter also came under fire while attempting to rescue soldiers at the base, leading to the death of a pilot.

The government says Machar was responsible and has now charged him and 20 others with murder, conspiracy, terrorism, treason, destruction of public property and crimes against humanity.

“These crimes were marked by gross violations of the Geneva Conventions and international humanitarian law, including the desecration of corpses, persecution of civilians, and attacks on humanitarian workers,” Justice Minister Joseph Geng Akech said, according to a read-out provided to reporters in Juba.

“This case sends a clear message: those who commit atrocities against the people of South Sudan, against our armed forces, and against humanitarian personnel will be held accountable, no matter their position or political influence,” the minister said in the statement.

The UN, which operates a major peace-building mission in South Sudan, said at the time that the country was “witnessing an alarming regression that could erase years of hard-won progress”.

Kiir had already been moving for months to consolidate power and sideline Machar, who was placed under house arrest a few weeks after the attack, while many of his allies have also been detained.