In Libya, rival militias traded fire Wednesday in the capital Tripoli, just hours after a truce had been called following the worst fighting in the area in years. The clashes broke out Monday following the killing of the leader of a powerful armed group that’s been accused of major human rights abuses in Libya’s migrant detention facilities. At least six people were killed. Libya is ruled by two main authorities, while armed groups vie for control over the country’s natural resources. A U.N.-recognized government in Tripoli is led by Prime Minister Abdul Hamid Dbeibeh, while a rival administration in the east of the country is controlled by Khalifa Haftar and his Libyan National Army.