VOA's Peter Clottey, reporting from Ghana's capital of Accra, reports polls closed in Ghana at 5 p.m. local time, although people in line at that hour were allowed to vote. He says the electoral commission postponed voting in one western Ghanaian district (Jaman North) until Thursday, due to an unspecified security threat.
Incumbent President John Mahama is seeking a second term against main opposition leader Nana Akufo-Addo, the man he defeated four years ago.
Akufo-Addo, a former foreign minister, has seized on Ghana's current economic woes as a campaign theme, accusing Mahama and his ruling National Democratic Congress of incompetence.
Ghana is a major exporter of oil, gold and cocoa. But Mahama's term has been overshadowed by the plunge in global oil prices, which reduced government revenues and contributed to soaring inflation. The government accepted a $918 million bailout from the International Monetary Fund.
The president traveled across the country in the waning days of the campaign to promote a set of new major infrastructure projects he has undertaken.
Ghana has enjoyed a reputation as beacon of democracy on the African continent, but this year's campaign has been marred by accusations of voter intimidation and concerns about the country's electoral commission.