it comes as there s been fresh gunfire in the capital and another failed ceasefire, with many people trapped inside the city after nearly a week of fighting between rival military factions. the violence is now thought to have killed at least 330 people, with thousands more injured. earlier, us national security council spokesmanjohn kirby said president biden is following the situation very closely. he authorised the military to move forward with pre positioning forces and to develop options in case, and i want to stress right now, in case there is a need for an evacuation. meanwhile, many people are desperately trying to leave, fearful about dwindling food supplies and the collapse of medical services. earlier, the un secretary general once again called for an end to fighting. as an immediate priority, eye appealfor a ceasefire to as an immediate priority, eye appeal for a ceasefire to take place for at least three days