Uganda : Regional leaders call for the rebels to halt their campaign . M23 wants to topple the government , which is supported by the United Nations . Uganda holds a regional summit Saturday to address the crisis . Oxfam warns of ` ` the humanitarian crisis reaching new heights ''
NEW : Regional leaders call for M23 rebels to halt their campaign . M23 wants to topple the government , which is supported by the United Nations . Uganda hosts a regional summit Saturday to address the fighting . Oxfam warns of `` the humanitarian crisis reaching new depths ''