Two policemen were killed after their minivan was hit by a blast in Russia's North Caucasus republic of Dagestan, a local police spokesman said on Monday. He said two policemen were driving their police minivan in the Kizilyurt district of the republic late on Sunday night, when a car loaded with explosives and parked on a roadside exploded as they drove by. Earlier reports said that a suicide bomber drove his car into the police minivan, killing two officers. Dagestan has been hit by a series of terrorist attacks recently, including fatal bombings and shootings.