A nuclear power plant in Japan reported an oil leak after being hit by a strong earthquake.
A 7.6-magnitude earthquake struck the Hokuriku region on New Year's Day, killing more than 120 people.
The Chika power station is located 65 kilometers (40 miles) from the epicenter, and has already reported temporary power outages, oil leaks in transformers and water leaks from nuclear fuel pools.
Hokuriku Electric said that an oil spill measuring about five meters by 10 meters was seen today floating on the sea surface in front of the power plant. The leak was treated with a neutralizing agent.
The utility company added that a small amount of oil layer was discovered in the gutter and on the road surrounding Reactor No. 2.
The company said that external radiation levels were not affected and there were no negative effects on human health or the environment.
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Utilities believe the stain was caused by leakage of transformer insulating oil during the earthquake. This activated the fire suppression system, dispersing oil and spraying water around the transformer.
The company added that it appears that the oil entered the trough through rainfall. Hokuriku Electric is still analyzing the situation.
The station's main external power supplies, monitoring facilities and cooling systems are operating normally.
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A Japanese village turned into rubble due to the earthquake
Meanwhile, rescue teams are working through the snow to deliver supplies to isolated villages affected by the earthquake.
As of Sunday morning, 195 people were still missing and 560 others were injured.
Among those rescued was a woman in her nineties She was recovered from a collapsed house more than five days after the earthquake.
