The senator was arrested on his way from Mandera on this morning and taken to the director of criminal investigations headquarters for interrogation. He had apologized for making allegations of the discovery of a mass grave in the county saying he regretted causing anxiety. Yesterday, Nkaissery told a press conference that Kerrow and journalists Mohamed Ali And Yassin Juma had made “repeated unsubstantiated claims" over allegations of the discovery of mass graves in Mandera.