Two police officers were killed and 12 people injured in a suicide bombing Monday morning in Russia\'s troubled North Caucasus republic of Dagestan, according to police. A car was parked outside a police headquarters building in the town of Khuchni, a district center south of the Dagestani capital, by a suicide bomber who then detonated explosives inside the vehicle, the Interior Ministry in Dagestan said in a statement released Monday. As a result of the blast two police officers were killed and 12 people injured, two of whom are in a critical condition in a hospital, according to police. The bomber also reportedly died, according to the Russain (RIA Novosti) News Agency. Russia\'s Investigative Committee said that nine police vehicles were damaged in the blast. Attacks on security forces, police and civilians occur regularly in the North Caucasus, generated by ethnic, religious and political rivalries, as well as poverty and corruption.