BISMARCK, N.D. (AP) — Developers of a $3.8 billion, four-state oil pipeline have agreed to halt construction near an American Indian reservation in southern North Dakota until a federal court hearing next week in Washington, D.C.

The Standing Rock Sioux Tribe is suing federal regulators for approving permits for the Dakota Access Pipeline that will move oil from North Dakota to Illinois. Tribal officials filed the lawsuit last month against the U.S. Army Corps of Engineers.

The tribe argues the pipeline would affect drinking water for residents on the reservation and disturb sacred sites outside of it.

The tribe’s request for a temporary injunction hearing is slated for Wednesday.

Dallas-based Energy Transfer Partners said Thursday it will temporarily stop work near the reservation but that work continues in other parts of the state.