Supporters of Kitui Governor Charity Ngilu and those of his predecessor Julius Malombe clashed outside a court in Nairobi on Thursday, leading to arrests.
Three people were arrested following the disturbance at the Milimani Law Courts during the hearing of a petition against Ms Ngilu's election filed by Mr Malombe who was cross-examined yesterday.
One man allegedly attacked Kitui Chief of Staff Crispus Ileli and was taken to Capitol Hill police station to record a statement.
Court orderlies restored order. Justice Pauline Nyamweya allowed only 15 people from both parties to attend court proceedings.
The case was adjourned to today.