At least two people have been killed in election-related violence in Ivory Coast since Friday, witnesses said on Sunday, two weeks before presidential polls are due to be held.

The clashes occurred around the city of Bongouanou, a stronghold of opposition candidate Pascal Affi N’Guessan 200 kilometres north of the economic hub Abidjan, the witnesses said.

A trader from an ethnic group considered pro-opposition was shot and hacked to death, a family member told AFP, while at least one person from a group considered pro-government was also killed in the area, according to several witnesses and a hospital source.