NEW : Americans president to address parliament three days on deadly riots . `` Both the central government and the king are still working out details of the meeting , '' said Daudi Migereko , the minister of parliamentary affairs . NEW : Death toll from three days of rioting rises to 21 ; 86 injured , 663 arrested . Uganda government warns Ugandan in U.S. of potential danger of more violence . Rioting sparked by central government 's travel ban on a tribal king .
NEW : Americans president to address parliament three days on deadly riots . NEW : Death toll from three days of rioting rises to 21 ; 86 injured , 663 arrested . Uganda government warns Ugandan in U.S. of potential danger of more violence . Rioting sparked by central government 's travel ban on a tribal king .