Ghana's main opposition party has rejected the election results declared by the electoral commission citing alleged irregularities.

Officials of the National Democratic Congress said they would make known their next course of action soon.

Incumbent President Nana Akufo Addo was on Wednesday evening declared winner of the election.

He won by a slim margin securing 51.59% of the total votes cast, while opposition leader former President John Mahama secured 47.36%.

Local and international election monitors have said that the elections were transparent, free, and fair.

In his victory speech, President Nana Akufo-Addo called for unity and promised to improve living standards.

His supporters have been celebrating following the announcement of the results.

The elections were tightly contested and peacefully conducted despite a handful of incidents. The turnout was high.

The re-elected government will have to deal with high unemployment rates and a struggling economy.