The Owerri prison break took place in the early hours of 5 April 2021, when a mass prison break occurred in Owerri, Imo State, Nigeria.

[1] A large armed group arrived in pickup trucks and on buses carrying rocket-propelled grenades, machine guns and rifles.

[1] The group entered the prison's yard by using explosives to break through the administrative block.

[1] The Nigerian Inspector General suspects the Eastern Security Network, the armed wing of the banned separatist group the Indigenous People of Biafra, are responsible for the attack.

[1] President Muhammadu Buhari described the crime as an act of terrorism perpetrated by anarchists.