The U.S. Coast Guard reported Friday that it was overseeing the cleanup of 50 gallons of crude oil that spilled into the Delaware River from a Sunoco facility in South Philadelphia.

An estimated 2,000 gallons of crude oil had discharged Thursday from a broken pipe onto a parking lot at the Sunoco Logistics Terminal Facility. About 200 gallons spilled into a drain, of which 50 gallons went into the river.

The Coast Guard said that a private firm was recovering the oil from the water and cleaning the drain, and that the source of the spill was secured. "We are doing our best to ensure a thorough cleanup with minimal environmental impact," said Senior Chief Petty Officer Steven Dukes, a Coast Guard marine science technician. - Robert Moran