Ghana's Supreme Court will issue a ruling on whether to overturn President John Dramani Mahama's election win in 2012 on fraud allegations.
Ghana President John Mahama held a slight edge over his main rival as vote counting wrapped up on Sunday after high-stakes presidential polls.
Politician Nana Akufo-Addo is again running for president of Ghana - a job that narrowly eluded him four years ago.
About 50 000 Ghanaians in a remote farming region were set to cast ballots on Friday in a knife-edge election to decide the next leader.
As Ghana gears up for the second round of its presidential election on Sunday, tension is growing in the camps of the two competitors.
Ghana's election is headed for a run-off, officials said on Tuesday, as the frontrunners seemed unlikely to secure an outright victory.
Ghanaians queued up and began voting on Sunday to pick a new president in a tight race between two foreign-educated lawyers