BROKEN ARROW, Okla. (AP) - The mayor of Broken Arrow says he'll step down amid criticism of a proposed Indian casino.

Mayor Mike Lester says he'll resign as mayor but retain his seat on the city council. Lester says he does not want good news in Broken Arrow to be overshadowed by the casino controversy.

Last week, the National Indian Gaming Commission said the site for a proposed casino in Broken Arrow can't be used for gambling. The Kialegee Tribal Town hoped to build the Red Clay Casino there.

The Tulsa World reports that Vice Mayor Craig Thurmond will assume the mayor's position.

Lester has served as Broken Arrow's mayor since 2009.