in other news, incumbent zam bian president -- zambian president edgar lungu, came to power after the death of his predecessor in 2015 but his main rival disputes the result, alleging electoral fraud and describing the poll as a sham. he says he will challenge the outcome in court. our correspondent joins us now from the zambian capital. we heard reports of riots, clashes between opposition supporters and the police. could this be a taste of more to come? reporter: ye, this is a taste of more to come because the people in these areas, mainly southern province, are not happy with the outcome because they want a change and so they feel these have not been looked into. sarah: but zambia, it's not used to this kind of election instability. what exactly has this poll result proved as so controversial? kathy: this poll result controversial is because that -- it's because the politics in zambia have become so -- each party from the opposition or ruling party is trying to gain as many votes to rule and you know just become rich for personal gain or to serve people but mostly for personal gain