<sod >Police fired live rounds and tear gas as they clashed with opposition supporters in one Nairobi neighbourhood but most of the capital and the rest of the country were calm after four people were killed in violence on Wednesday.< eod>< sod > Police fired live rounds and tear gas as they clashed with opposition supporters in one Nairobi neighbourhood on Thursday but most of the capital and the rest of the country were calm after four people were killed in violence on Wednesday.< eod>