Owerri ( , ) is the capital city of Imo State in Nigeria, set in the heart of Igboland. It is also the state's largest city, followed by Orlu, Okigwe and Ohaji/Egbema. Owerri consists of three Local Government Areas including Owerri Municipal, Owerri North and Owerri West, it has an estimated population of about 1,401,873 as of 2016 and is approximately in area. Owerri is bordered by the Otamiri River to the east and the Nworie River to the south. The Owerri Slogan is Heartland. History Owerri was the last of three capitals of the Republic of Biafra in 1969. The capital of the secessionist state was continuously being moved as Nigerian troops captured the older capitals. Enugu and Umuahia were the other capitals before Owerri. Present-day Owerri does contain some statuary memorializing the war, particularly in locations which suffered heavy bombing, but most war artifacts and history are located in the museum at Umuahia, Abia State. On 5 April 2021, a mass prison break happened in Owerri, in which 1,844 inmates were released. It is alleged that the Eastern Security Network was responsible for the attack. Transport and trade Owerri has an airport southeast of the city, called the Imo Airport, located in Obiangwu, Ngor Okpala LGA. The Airport (Sam Mbakwe Airport) provides flight services to Abuja, Lagos, Port Harcourt, and Enugu. Right now, it serves as an alternate for Port Harcourt. Sam Mbakwe International Cargo Airport is now an International Cargo Airport. Some major roads that go through the city are; Port Harcourt Rd., Aba Rd., Onitsha Rd., and Okigwe Rd. Roads within the city are; Douglas Rd. , Weatheral Rd., Tetlow Rd., and Works Rd. Relief market is the main market in Owerri after the demolition of Eke Ukwu Owere. Owerri sits in the rain forest and produces many agricultural products, such as yams, cassava, taro, corn, rubber and palm products. Owerri also sits on huge crude oil and natural gas reserves like most of the Igbo land areas. Climate Owerri has a tropical wet climate according to the Köppen-Geiger system. Rain falls for most months of the year with a brief dry season. The Harmattan affects the city in the early periods of the dry season and it is noticeably less pronounced than in other cities in Nigeria. The average temperature is 26.4 °C. Education Universities/tertiary institutions African University of Science and Technology (AIST CCE Owerri)