Incumbent Peter O'Neill has been re-elected as prime minister of Papua New Guinea, following a chaotic, violence-plagued campaign marred by allegations of voting irregularities.

O'Neill was sworn in Wednesday to a second five-year term to lead the South Pacific island nation after his People's National Congress formed a coalition government with other minor parties, giving O'Neill 60 votes with 46 votes against him.

Papua New Guinea Parliament Re-elects Prime Minister

The weeks-long election process struggled because of poor organization and accusations by opposition candidates of vote rigging.

Papua New Guinea Parliament Re-elects Prime Minister

Papua New Guinea has been plagued for decades by corruption, which has stifled the island's economic growth despite a liquefied natural gas project operated by ExxonMobile. O'Neill himself was charged with corruption by an anti-graft task force over allegations he make illegal payments to a law firm with government money. O'Neill ignored the warrant and disbanded the task force.

Papua New Guinea Parliament Re-elects Prime Minister