Five people have been killed in election-related violence in Ghana, police said Wednesday, as tensions boiled over during a tightly contested race.

 The deaths were reported as early results confirmed a tight race for the presidency and Ghana’s neighbours urged political camps to uphold a peaceful outcome after trading heated accusations.

“Sixty-one electoral and post-electoral incidents nationwide” were reported, the police said in a statement.

Of these, 21 “are true cases of electoral violence, six of which involve gunshots resulting in the death of five.”

The electoral commission published results from seven out of the country’s 16 regions, pointing to a narrow lead by opposition candidate John Mahama over outgoing president Nana Akufo-Addo.

Monday’s presidential and parliamentary vote has been viewed by observers as generally free and fair.

But Mahama late Tuesday accused Akufo-Addo of showing “credentials that are very undemocratic” and harnessing the military to sway the outcome.

“You cannot use the military to try and overturn some of the results in constituencies that we have won. We will resist any attempts to subvert the sovereign will of the Ghanaian people,” the 62-year-old former president said.

He made the accusations after rumours circulated on social media that he had conceded defeat.

Hours earlier, the presidency — releasing an unofficial tally — claimed Akufo-Addo was ahead with 52.25 percent of the vote, against Mahama’s 46.44 percent.

Information Minister Kojo Oppong Nkrumah told a press conference that allegations of intimidation by soldiers were false.

He also bluntly rejected Mahama’s claim that his party had won a majority, of 140 seats, in the 275-member parliament.