Counting is underway in Nigeria’s presidential election which has been marred by violence and irregularities.<br /><br /> Voting had to be extended into a second day on Sunday following technical problems with ID machines designed to eliminate fraud.. <br /><br /> For the first time since the end of military rule in 1999 an opposition candidate is being seen as having a serious chance of winning.<br /><br /> President Goodluck Jonathan and his People’s Democratic Party (PDP) is facing a strong challenge from former military ruler Muhammadu Buhari and his All Progressives Congress (APC).<br /><br /> But there has been tension in the wealthy oil rich south in Rivers State where opposition protesters complained of being excluded from the count.<br /><br /> Nigeria’s electoral commission chairman Prof. Attahiru Jega said it would be investigated.<br /><br /> “We are concerned about what seems to be happening in Rivers State, there are many alleged cases of malpractices and we certainly pay a lot of attention to investigating this.”<br /><br /> Islamist in
