Kiambu Governor Ferdinand Waititu has presented himself to the police after a day on the run.
Mr Waititu surrendered on Sunday morning to Ethics and Anti-Corruption Commission (EACC) detectives at their headquarters in Nairobi.
Speaking to K24 Digital, Mr Waititu said he was out of town when the Director of Public Prosecutions ordered him to surrender to the police.
He said he went to the EACC offices early Sunday morning and found their Integrity Centre offices locked.
"I have not been arrested. I have just honoured the summons that were issued," Mr Waititu said.
The whereabouts of Mr Waititu's wife, Ms Susan Wangai Ndung'u, and several other suspects who also wanted in Sh588 million graft probe, is still unknown.
The EACC had on Saturday ordered Mr Waititu to turn himself him at their headquarters in Nairobi.
Besides Mr Waititu and his wife, the Director of Public Prosecutions ordered Kiambu Roads chief officer Luka Mwangi, Testimony Enterprises Director Beth Wangechi and three members of the county tender team to surrender themselves to police.
On July 17, the EACC recommended charging of 12 persons over the irregular award of the Sh588 million tender for upgrading of various gravel roads to bituminous service by the Kiambu County.
After perusing the EACC file, Mr Haji gave consent for the 12 individuals to be charged with abuse of office, flouting tender law, among other offences.