MOSCOW (Reuters) - A Russian conscript soldier killed three fellow servicemen on Monday at a military air base after attacking them with an ax and a gun, Russian news agencies reported. The serviceman shot at officers who had come for a morning inspection at the base in the Voronezh region, around 500 km south of Moscow (310 miles), and then fled the scene, news agencies cited the defense ministry as saying. There were contradictory reports of what happened nextRosgvardia, Russia’s national guard, told news agencies that it was searching for the shooter with the help of helicopters and drones. But the TASS news agency cited an unnamed source in the region’s emergency services ministry as saying the soldier had barricaded himself inside the base. “The soldier fired using a pistol that he took from an officer. Three people were killed,” TASS cited the source as saying.