JUBA, South Sudan (AFP) by Peter MARTELL with Michael O’HAGAN in Nimule, Uganda A heavily-armed Ugandan military convoy crossed into South Sudan on Thursday to evacuate citizens trapped in the capital Juba as fears persist that days of fierce fighting might reignite despite a ceasefire. The United Nations has warned of tension and the possibility of fresh fighting in Juba, where a ceasefire has held since late Monday. President Salva Kiir on Thursday called on […]