The Argosy Casino Hotel and Spa in Riverside, Missouri, said it would lay off 289 employees beginning August 15. Two Penn National Gaming casinos are laying off more than 500 employees in the wake of COVID-19-related lockdowns that have disrupted their businesses. The company said the layoffs will be permanent although the casinos will remain open. The Argosy Casino Hotel and Spa in Riverside, Missouri, said it would lay off 289 employees and the Hollywood Casino at Kansas Speedway in Kansas City, Kansas, said it would lay off 215 workers.