Vladimir Putin chastises Russian tycoon over massive Arctic oil spill
Investigators have started looking into the cause of the accident and local officials' failure to quickly report it to federal authorities. The company said the accident might have been triggered by melting permafrost.

Putin has declared a state of emergency in the region to help minimize the consequences of the spill. The power plant is operated by a division of Norilsk Nickel, whose giant plants in the area have made Norilsk one of the most heavily polluted places on the planet.
Investigators have started looking into the cause of the accident and local officials' failure to quickly report it to federal authorities. The company said the accident might have been triggered by melting permafrost.
During Friday's call with officials and environmental experts, Putin lashed out at Norilsk Nickel owner Vladimir Potanin, saying it was his company's responsibility to check the fuel tanks' condition.
"There wouldn't have been the damage to the environment if you replaced them in time," Putin told Potanin, who is Russia's richest man with an estimated fortune of USD 25.5 billion, according to Forbes magazine.
Potanin said that his company will pay for the cleanup efforts that he estimated at 10 billion rubles (USD 146 million) and will also stand ready to pay fines for damage to the environment.
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