A tanker truck overturned on Route 1 in Delaware County, Pennsylvania, on Monday morning, causing thousands of gallons of heating oil to spill onto the roadway.

The truck flipped over around 9 a.m. in the northbound lanes of the Media Bypass, near Ridley Creek Road, in Upper Providence Township.

All lanes of the Media Bypass have reopened after an hours-long closure.

Officials say the truck had left a filling station in Marcus Hook and was headed to a location in Marple Township before crashing.

"One of the tanks, it has two tanks on it, one of the tanks had a large gaping hole in it, and it spilled out approximately 2,000 gallons of home heating oil," Alan Mancill, fire marshal and emergency management coordinator for Upper Providence Township, said.

Chopper 3 was over the scene, showing the truck on its side with its rear wheels separated from its back and oil on the road.

Upper Providence Township police said the diesel spill was contained.

The driver was able to crawl out of the cab of the oil tanker truck. He was taken to a nearby hospital. His condition is unknown.

Officials are concerned about the heating oil reaching Ridley Creek.

Firefighters were on scene quickly to set up a containment system to capture as much oil as possible. An official said he believes they were successful in limiting most of the oil from reaching the creek.

Oil was seen leaking down bridge-support columns. An official said it's likely much of the oil settled into nearby soil.

A number of agencies responded to the scene to mitigate the spill.

Homeowners in the immediate area said the smell of heating oil was easy to notice, and family members checking in on them advised them to keep their windows and doors closed.

Sandra McGinley has lived in the area for over 30 years. She said the sound of the crash was startling.

"About an hour ago, I heard an excruciating noise coming from the bridge, louder than I've heard in the past," McGinley said. "I thought it was a truck. I had no idea that something turned over. It was loud. This was way different. I can't even tell you what it sounded like."

PennDOT's bridge inspection crews are examining the bridge to rule out any structural issues due to the oil.

Aqua shut down an intake for one of its plants on Ridley Creek out of an abundance of caution due to the spill.

It's unclear what caused the accident.