A federal judge in Louisiana on Friday revoked a permit for Energy Transfer Partners’ Bayou Bridge crude oil pipeline, halting work on a portion of the project following protests by local and environmental groups.

The decision by U.S. District Judge Shelly Dick in Baton Rouge underscores the growing clashes between energy pipeline operators expanding operations to accommodate new oil and gas flows from U.S. shale fields and environmentalists concerned about spills and other hazards. 

Energy Transfer Partners declined to comment, saying it would wait to review the judge’s opinion, which was not included with the order. 

Friday’s ruling granting a preliminary injunction requires the U.S. Army Corps of Engineers to revisit its approval of the pipeline’s construction through the Atchafalaya Basin, according to the decision.