SIOUX FALLS, S.D. (AP) — South Dakota routinely violates the federal law governing foster care and adoptions for American Indiana children by holding improper hearings after children are removed from homes, two tribes allege in a lawsuit filed Thursday.

The Oglala Sioux and Rosebud Sioux Tribes, along with three Native American parents, filed the lawsuit in federal court in Rapid City, alleging the state is violating the Indian Child Welfare Act. The lawsuit is part of an ongoing dispute about Native American children in foster care in South Dakota.