Attorneys for investors who lost a bid to build a casino in southeast Kansas have filed a lawsuit seeking to overturn the decision.

Castle Rock Casino is suing the Kansas Racing and Gaming Commission, the Kansas Gaming Facility Review Board and members of the groups. The Kansas Lottery and its executive director are also named in the lawsuit.

The lawsuit filed July 31 in Shawnee County challenges a decision in June to support a $70 million Kansas Crossing Casino proposal to be built near Pittsburg. Castle Rock had proposed building a $145 million casino complex in Cherokee County.

The Pittsburg Morning Sun reports Castle Rock officials argue the review board made the wrong decision and did not follow the law when choosing the smaller project.