The accusations included the positioning of booths, which allowed anyone standing near the booth to see how a person was voting. Also, many ballot stations opened before 8am while others allowed voters to cast their ballots after 3pm, resulting in complaints being posted on the Election Commission website.

"I asked officials why the booths were positioned this way," said a voter from Bangkok's Klong Sam Wa. "They laughed, saying nobody was interested in how I voted."

Another voter from the same district said she was surprised to see pictures of candidates above the ballot booth. Usually the pictures would be on a board away from the booths.

Assistant police commander Lt-General Nawin Singhapalin yesterday said no major offences had been reported but the police's Electoral Operations Centre had been alerted to 64 minor electoral offences.

The minor offences included 47 incidents of alcohol sale or distribution near polling stations, six ballot papers found to be intentionally damaged and six cases of assault and disturbance near polling stations.