Sudan's capital resounded with gunfire and explosions on the western outskirts on Wednesday, eroding a truce amid collapsing basic services, dwindling food supplies and the opening of a prison that let out allies of a jailed former autocrat. With the conflict between the army and the paramilitary Rapid Support Forces (RSF) showing no sign of easing, the army said former president Omar al-Bashir had been transferred to a military hospital before hostilities started on April 15.