Russia declared a state of emergency on June 3 after a massive oil spill in the Arctic region. Around 20,000 tons of fuel from a power plant in Norilsk leaked into a river on May 29th. The power plant is owned by Norilsk Nickel, a Russian metals mining giant. The oil leaked into the Ambarnaya river that flows into the environmentally sensitive Arctic Ocean. This oil spill is believed to be the second largest in modern Russian history in terms of volume.