The spill comes amid a heated debate over oil pipeline safety in the United States.

The spill, equivalent to nearly 140,000 gallons of fuel, is the largest diesel spill in the U.S. since 2010, federal authorities confirmed to the Associated Press.

Magellan said it expects to begin pipeline repairs later on Thursday but did not have an estimate on when pipeline operations will resume on the damaged segment of its system.

“We do not expect this incident to disrupt supply of gasoline, diesel and other refined petroleum products in the region,” Magellan said in an emailed statement.

The spill comes as pipeline safety has become a hot-button issue in the United States. Protesters and environmental activists rallied for months against plans to route the Dakota Access pipeline beneath a lake near the Standing Rock Sioux reservation, saying it threatened water resources and sacred Native American sites.

U.S. President Donald Trump signed orders on Tuesday smoothing the path for the Dakota Access oil pipeline and another controversial project – the Keystone XL pipeline.

The diesel fuel released from Magellan’s pipeline has been contained in the immediate area of the pipeline release and the fuel did not come into contact with any waterways, the company said.

Magellan said its representatives along with environmental and cleanup professionals are making “significant progress” in recovering diesel fuel in the immediate area.

The Iowa Department of Natural Resources (DNR), however, said on Wednesday that weather conditions, including high winds and blowing snow, were affecting cleanup efforts.

“At the time of the incident, there was about 12 inches of snow in the area and the primary issue was getting response vehicles to the site,” David Miller, environmental specialist at Iowa’s DNR, told Reuters. “Now that has largely abated and weather is no long hindering cleanup efforts.”

Magellan told the Iowa DNR it hoped to recover all of the spilled fuel in about one or two days and then aims to excavate the contaminated soil, Miller said.

There have been no injuries or evacuations associated with the spill, Magellan said.

The damaged stretch of pipeline, which is 12 inches in diameter, runs between Rosemount, Minnesota and Mason City, Iowa, a Magellan spokesman told Reuters.

Brokers said high levels of inventories in the region meant that a somewhat short supply disruption was unlikely to move prices.