Moscow, Oct 12 (Reporter)Four people, including two children, were killed on Saturday in a gas tank explosion at a gas station in the city of Grozny in Russia's Chechnya, the local office of the Russian Emergencies Ministry said. "The staff of the Russian Emergency Ministry has extinguished the fire in Grozny. Unfortunately, four people were killed, including two children. The structures are being watered and dismantled," the statement read. The ministry said that 35 firefighters and seven fire engines had been deployed to combat the blaze. The regional branch of the Russian Investigative Committee sent a team of investigators to the gas station. It said it was considering opening a criminal probe into the explosion...////...