The anti-corruption watchdog Transparency International says reports it has received from monitors during the Papua New Guinea national elections show significant abuse of the electoral process.
The secretary of TI in PNG, Richard Kassman, says there have been a number of electoral malpractices that could have an impact on the final result.
He says in some areas it could be poor administration but in others the abuse has been orchestrated.
He says this includes multiple voting and the completing of ballot papers by supporters of candidates or electoral officials.
"If people have access to boxes, you can really tilt - I mean you put the number of ballots that are available and [you can] control the polling in that particular polling station or ward. It can actually have an impact. It can influence the eventual outcome, definitely."