Moscow, April 5 (Inditop.com/RIA Novosti) At least two police officers were killed and two injured in twin blasts in Russia’s Ingushetia province Monday, police said.

At least one of the explosions was caused by a suicide bomber, they said.

The suicide bomber set off an explosive device when he was stopped by security guards at the gates of a police station in Karabulak town.

The second blast occurred just minutes after the first, but details are awaited.