Crews were on scene looking into a possible spill in one of the creeks in Mill Creek MetroParks on Friday morning. 

Mill Creek MetroParks executive director Aaron Young says reports of a milky white substance in the water came in just after 8 a.m.

Youngstown Battalion Fire Chief, Silverio Caggiano said the Ohio EPA has identified the substance as sodium hydroxide. 

According to Ohio EPA, 250 gallons of sodium hydroxide was found in Bears Den Creek.

Caggiano says the substance has been traced back to Induction Iron Incorporated on Hendricks Road in Youngstown. 

Officials say the leak has been stopped and the whiteness in the water is gone. 

The EPA says the sanitary line was incorrectly connected to the storm sewer off the property. 

MetroParks Police, Mahoning Soil and Water Conservation District, Ohio EPA, HAZMAT, Austintown, and Youngstown Fire Departments were on scene investigating the substance. 

Ohio EPA says Induction Iron will be issued a notice of violation. 

The extent of the damage so far is unknown but officials say they have not seen any dead fish.