CINCINNATI -- An estimated 5,000 to 8,000 gallons of fuel oil spilled into the Ohio River, closing about a 15-mile section of the waterway southeast of Cincinnati.
A Coast Guard spokeswoman says that the section of river was closed to river traffic Tuesday to enable cleanup and response. A Duke Energy spokeswoman says the spill from a Duke substation in New Richmond, about 20 miles southeast of Cincinnati, happened late Monday night.
Duke Energy spokeswoman Sally Thelen says the spill occurred during a fuel transfer and lasted 10 to 15 minutes before it was stopped.
Coast Guard spokeswoman Lt. Katherine Cameron says the spill is considered medium-sized. That designation applies to inland leaks between 1,000 and 10,000 gallons of oil. Officials are working to determine the exact extent of the spill.