The Environmental Protection Agency in the Western Region is investigating the source of a pollutant which has killed nearly 10 tons of fish in the Butre Lagoon in Takoradi.Though details remain sketchy, the Agency is not ruling out the possibility of a chemical pollution as officials await laboratory results to ascertain the cause of this serious environmental breach.Joy News’ Western Regional correspondent, Kwaku Owusu Peprah reports that some residents of the area who consumed the dead fishes are said to be suffering from some serious stomach upsets.The Assembly Member of New Takoradi community E.E. Adokor told Joy News some companies that have been fingered as being behind pollution have however denied any involvement.He said the lagoon serves as the major source of work for the young men in the area and therefore called the appropriate authorities to quickly step in to avert any further breaches.