A coalition of 24 Nigerian political parties on Thursday filed a suit in an Abuja court challenging the decision of the country's electoral commission to impose fees on contestants in coming general elections. The Independent National Electoral Commission (INEC) had announced it would charge as "processing fees" amounts ranging from 500,000 naira (US $4,000) for presidential candidates to 25,000 naira ($200) for those seeking local government councillorships.