The incident at the Kuybyshevskiy oil refinery in Russia's Samara occurred at an old decommissioned building, there are no casualties or any damage done to the equipment, a representative of the Russian oil giant Rosneft said on Friday

An explosion occurred at the Kuybyshevskiy oil refinery in Russia's Samara, according to the preliminary information, an explosive device was planted, there was no serious damage and no casualties, Russian lawmaker Alexander Khinshtein said on Friday