SALLISAW, Okla. (AP) — The state of Oklahoma and the Cherokee Nation are working together in court to stop the permanent disposal of radioactive waste near the Arkansas and Illinois rivers.

The pair obtained a temporary restraining order against the owner of a long-out-of-business uranium plant on Thursday, the Tulsa World (http://bit.ly/2kQfMgP ) reported.

Statements from the Cherokee Nation said the Sequoyah Fuels facility, which converted yellowcake uranium into fuel for nuclear reactors, left tons of "uranium-contaminated sludge" in many "basins, lagoons and ditches at the site" when it cl...