AMHERST, S.D. (AP) — TransCanada Corp. says the company has sent additional crews and equipment to the site of a 210,000-gallon oil spill in South Dakota from its Keystone pipeline.

TransCanada said Saturday it is making progress in its investigation into the cause of the spill on farmland in Marshall County, near the North Dakota border, about 250 miles west of Minneapolis. But the company did not elaborate. The company says additional equipment and workers continue to be dispatched to the site.

About 150 people are now at the site, company spokesman Terry Cunha said Sunday. A gravel road has been completed to handle heavy equipment, Cunha said.

Crews shut down the pipeline Thursday after discovering the leak.

TransCanada says the leak is under control and there is no significant environmental impact or threat to the public.

© 2020 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

Commenting is limited to Omaha World-Herald subscribers. To sign up, click here.

If you're already a subscriber and need to activate your access or log in, click here.

Recommended for you

Load comments

You must be a full digital subscriber to read this article You must be a digital subscriber to view this article.

Your sports-only digital subscription does not include access to this section.

Upgrade to full digital for only $3 extra per month. If you need assistance, call us at (844) 466-1452 or e-mail owhdigital@ggl.bhmginc.com.

To start a new subscription or to add digital access to your print subscription, click Sign Up to join Subscriber Plus.

If you’re already a digital subscriber, Log In.

If you need other assistance, call (844) 466-1452 or email owhdigital@ggl.bhmginc.com.

Learn more about Subscriber Plus.