Muslims make traditional Friday prayers in front of a police riot truck, providing security due to the ongoing general threat of attacks by Islamic extremist group Boko Haram, at a mosque near to the Emir's palace in Kano, northern Nigeria, Friday, Feb. 15, 2019. Nigeria is due to hold general elections on Saturday, pitting incumbent President Muhammadu Buhari against leading opposition presidential candidate Atiku Abubakar. (AP Photo/Ben Curtis), APTOPIX