A Coast Guard spokesman said about 1,000 gallons of crude oil entered the river Monday afternoon near Monroe Energy LLC, in Trainer, Pa.
Officials said responders employed a boom to prevent the oil from spreading and used vacuums to suck out the tainted water, Philly.com reported.
The cause of the spill was not reported.
NBC reportedly holds celebs hostage to Jimmy Fallon's show
Aaron Carter is still in love with Hilary Duff