The 16th unified local elections in Japan took place in April 2007. In the first phase on April 8, 2007 13 governors, 44 prefectural assemblies as well as four mayors and 15 assemblies in cities designated by government ordinance were elected. In the second phase on April 22, 2007 mayors and/or assemblies in hundreds of cities, special wards, towns and villages were up for election. Additionally, by-elections for the national Diet were held in Fukushima and Okinawa on April 22.