The “Admiral Danish Fleet” SOK (Søværnets Operative Kommando) is informed about an oil slick near the Fu Shan Hai wreck site, early on the 13th of may 2010.
The observation was done by the crew onboard a fishing boat.
The Admiral Danish Fleet sent the vessel Nymfen, to examine the oil. They reported that it was diesel fuel, and that it would evaporate before reaching the coast.
SOK and a civilian diving company examined the Fu Shan Hai on the 15th of may 2010, without finding a source to the oil.