Two bombings rocked Russia’s North Caucasian republic of Ingushetia on Monday morning, killing two policemen and injuring three others.

Interior Ministry servicemen stand next to a car that was blown up during a bombing in Karabulak April 5, 2010. A suicide bomber killed at least two policemen in Russia’s Ingushetia region on Monday, the latest in a spate of attacks that underscore the threat from an Islamist insurgency on Russia’s southern flank.

“He (the bomber) arrived in a car,” the RIA Novosti news agency reported citing local police. “All security measures were taken and as a result, the police’s fears were confirmed when the car exploded.”

Local police said another car bomb was detonated by remote control at the same location at around 9:10 a.m. Moscow time (0510 GMT), when rescuers and investigators arrived at the scene. One law enforcement officer was slightly injured.

An investigation was underway. According to the Ingush Interior Ministry, a vehicle check would be launched on Monday in the republic.

At the time of the explosions, some 50 traffic policemen and interior personnel in the city were conducting a drill.

VietNamNet/Xinhuanet