Voting begins in Ghana's election as Mahama runs for second term

A woman casts her vote during the presidential election, in Accra, Ghana December 7, 2016.REUTERS/Luc Gnago

ACCRA (Reuters) - Ghana voted on Wednesday in a presidential election that looks set to be a tight race, with the incumbent John Mahama seeking a second term in charge of an economy that has slowed since he took power.

Lower global prices for Ghana's gold, oil and cocoa exports and a fiscal crisis caused the slowdown, which made Mahama's government vulnerable to a challenge from the main opposition leader, Nana Akufo-Addo.