America’s commercial casino industry will be at a total standstill as of Wednesday as South Dakota’s laggards belatedly join the COVID-19 shutdown parade.

On Monday, David Ruth Jr., the mayor of Deadwood, South Dakota, penned an open letter to the city’s casino operators, urging them to close their doors to help the state’s overall effort to limit the spread of the coronavirus pandemic.

South Dakota is among the nation’s leaders in terms of most casinos per capita. Some of Deadwood’s casinos had already announced plans this weekend to voluntarily shut down and Ruth urged all casinos to do likewise as soon as possible.

On Monday, Gov. Kristi Noem signed an executive order instructing any “enclosed retail business that promotes public gatherings” to “suspend or modify business practices” that involve ten or more people where physical separation of at least six feet isn’t possible.