The Kansas Supreme Court has rejected a legal challenge involving a site for a proposed state-owned casino south of Wichita.

Iowa-based developer Peninsula Gaming said Wednesday the Kansas court's ruling resolves legal questions surrounding the company's proposed casino site in Mulvane.

The Supreme Court refused Tuesday to hear a lawsuit by the Sumner County Commission against the city of Mulvane over its annexation of the land. The decision leaves in place a Kansas Court of Appeals ruling upholding the annexation.

City officials in Mulvane have endorsed Peninsula's plan, and the annexation was necessary for the project to move forward. The county commission is backing a rival proposal from Ada, Okla.-based Global Gaming Solutions for a casino near Wellington.

The county commission said it still sees the Global site as superior.