Voting has closed in most places in the Imo State governorship re-run election while counting is ongoing, correspondents of the News Agency of Nigeria report.
At Ossemotor in Oguta Local Government Area, voting ended around 3.40pm, while counting commenced immediately.
It ended in most other places around 5pm.
The election has been characterised by violence and other electoral malpractice, especially in Oru East Local Government Area.
The election is holding in some polling units in 23 local government areas, which were cancelled or inconclusive in the April 11 election.
Meanwhile, a chieftain of the Peoples Democratic Party, Marshall Anyanwu, complained that there were too many unaccredited observers at the election, especially in Omuma, Oru East Local Government Area.
Anyanwu, a former Chairman of the APC in the state, told newsmen at the Omuma Central School that state government officials, posing as observers, were all over the place in contravention of the electoral law.