Ghana opposition cries foul ahead of election results

ACCRA (Reuters) - Ghana's main opposition party said on Sunday the country's presidential and parliamentary election had been rigged by electoral workers, raising concerns of unrest in a nation seen as a bulwark of African democracy.

Security forces used teargas to disperse hundreds of supporters of the New Patriotic Party protesting in front of the electoral commission building in the capital Accra, where officials were expected to announce results from the poll.

Local media outlets, using tallies from individual polling stations around the country, have projected that incumbent leader John Dramani Mahama narrowly beat NPP candidate Nana Akufo-Addo in the election's first round.

"These results cannot be forced down the throat of the people of Ghana," NPP chairman Jake Obetsebi-Lamptey told reporters at a news conference in Accra, urging electoral officials to delay announcing a winner.