A defunct bomb was found Sunday night near a Federal Prison Service building in the Bashkortostan capital of Ufa, Interfax reported Monday.
A "suspicious bag" was discovered near the building, prompting a visit from the police's bomb squad unit, who cordoned off the bag and examined it, the Interior Ministry's press service said.
The bag contained a Tupperware container with wires packed with just under a kilogram of explosives — ammonium nitrate powder and aluminum powder — as well as an electric detonator, a fuse and wires. But the device lacked fertilizer elements necessary to set off the bomb.
According to the prison service's regional website, the building where the bomb was discovered serves as headquarters for its regional branch.
A criminal case has been opened on charges of illegal manufacturing of weapons, which carries a maximum punishment of eight years in prison.