Nigeria's presidential election, which was due to be held today, has been postponed by a week, the chairman of the country's electoral commission said hours before polls were due to open. Addressing journalists in the early hours of Saturday, independent national electoral commission (inec) chairman Mahmood Yakubu said the delay was needed to hold a free and fair election. The country's presidential elections in 2011 and 2015 were also delayed over logistics and security issues.video: 160219 eng government on water