Police defused an improvised explosive device outside a concert hall in the Chechen capital of Grozny on Tuesday.
It contained 6 kg of TNT, chipped iron rods, screws and a Nokia cell phone for shrapnel, a police spokesman said.
The area around the concert hall has been targeted before. In June, a suicide bomber blew himself up in the parking lot, injuring five police officers and two passers-by.
Terrorist attacks and shootouts with police are common in Russia's troubled North Caucasus republics, especially in Dagestan and neighboring Chechnya and Ingushetia.
The Kremlin has vowed to clamp down on militant groups while stepping up efforts to boost the local economy.
MOSCOW, October 26 (RIA Novosti)