Abuswamad Shariff Nassir of Raila Odinga's ODM party needed to produce the document to identify himself as a registered voter.

He was later allowed to vote at his Mvita constituency after producing the document.

His opponent, Hassan Sarai Omar, of William Ruto's UDA party also voted in Mvita constituency.

The ongoing elections for eight elective seats are a test for Mr Odinga and Mr Ruto's parties as they await the Supreme Court ruling on presidential election petitions.

Mombasa's current governor Hassan Joho who has served two terms decried low voter turn-out after he voted.

Mombasa and Kakamega counties had their gubernatorial elections delayed because of a mix-up in ballot papers.

Kenya had its general elections on 9 August and 45 governors from across the country were sworn in on Thursday.