Conflict in South Sudan is worsening as rebels successfully take over a key oil production area, a report said. The violence threatens to delay the government's plans to restart oil production in the area, Christian Science Monitor reported. The conflict in South Sudan is deepening with rebels loyal to South Sudan’s former deputy president taking control of the capital of Unity State, Bentiu, on April 14, ordering oil companies to shut down operations and evacuate their workers. Since previous fighting had already idled oil production in the state, the biggest business impact of the takeover was on a new oil refinery under construction. On Monday, United Nations peacekeepers rescued 10 workers with Safinat, a Russian oil-refining company. Five workers were injured, two critically. The rebels said all the workers had to be evacuated in a week. This was followed by killings of civilians a few days later in the city with reports of hundreds massacred in a mosque. The violence jeopardizes the oil industry’s immediate future in Unity State.