According to the daily newspaper Satakunnan Kansa, police have opened a criminal investigation into an oil spill in the Kokemäki river in western Finland last month.
Some 50,000 litres of light fuel oil leaked into the Kokemäki river from a Pori Energia heating plant on 21 December. The accident occurred due to a discharge pipe being incorrectly attached to a truck carrying fuel oil. The oil seeped out of the tank and into the river through a drainage sewer.
The accident is being investigated as an aggravated environmental crime. The suspect has not been named yet.
Emergency services have cordoned off the spread of the substance with barrier booms to prevent the oil from flowing downstream. However oil has been detected as far downriver as Nakkila and Ulvila.