ODM nominations for Migori governor were called off following irregularities.
Police in Migori arrested Mark Ouma, the chief campaigner of one of the governor aspirants, with ballots.
Ouma was trailed by supporters of aspirant Okoth Obado and cornered at Nyasare outside Migori town.
It took the intervention of journalists to rescue the man who was then taken to the Migori police station.
"We found nomination papers in his vehicles and other vital documents," said Obado.
Migori DCIO Festus Kiambi said the ballots were from Suna East location which indicated Ouma planned to doctor results.
Aspirants claimed that the Suna East elections were rigged after the returning officer Andrew Shikhule went missing and the results read by Joseph Nyambori, an ODM official.
The results which were announced at Municipal Council Hall did not contain the outcome of voting in God Jope ward which were annulled by the national elections board.
Aspirants Junet Mohammed and Peter Jobando said there had been rampant rigging.
"Nyambori was a chief campaigner of Edward Oyugi. Who gave him the authority to announce the results? He claims to have been given the mandate by ODM election board," Obado said.
Yesterday, tallying for various positions flopped after residents of Awendo and Nyatike constituencies failed to vote as nomination materials were not delivered.
By the time of going to press aspirants in Awendo were camping at Migori police station with the returning officer Egline Egose demanding that nominations be held today.
Obado and supporters of aspirant Anne Anyanga have demanded Akong'o Oyugi, Ouma's boss, should be barred from the race for flouting election regulations.
Ouma was wanted for questioning after some returning officers went missing from their work stations.