The Fishers Fire Department is investigating a possible fuel oil leak in the area of the White River near 13200 block of Allisonville Road.
Mark Elder with the Fishers Fire Dept. says it appears that the product made its way to the water. He believes the incident is the result of heavy rains that occurred in the area Thursday.
The tanks are on a residential property not far from Conner Prairie Interactive History Park.
Elder says they have placed booms across the water in an effort to contain the product as much as possible. He said the Indiana Department of Emergency Management, the EMA and other agencies are assisting at the scene.