The Sudanese government announced that the U.N. envoy to the country and key mediator in its brutal conflict is no longer welcome as the warring sides in the African nation agreed to a new, 24-hour cease-fire.

The move comes after army chief Abdel Fattah al-Burhan accused Volker Perthes of inflaming the fighting between the warring factions in Sudan.

Top Sudanese military official Abdel-Fattah Burhan said that the UN had brought "negative repercussions" to Sudan. UN envoy Volker Perthes had accused Sudan's warring factions of disregarding the laws of war.

At least 180 people have been killed and a further 1,800 injured in three days of fighting between rival factions in Sudan, according to the United Nations special representative for Sudan, as the Group of Seven joined calls for an immediate to end to hostilities.

The next presidential election in the United States is still 20 months away, but a second Republican has already thrown her hat in the ring: Nikki Haley, a former South Carolina governor and ex-US ambassador to the United Nations.

The law would have allowed for the Serb-majority Republika Srpska to take over property owned by the central government. Serb leader Milorad Dodik said he does not accept the decision.