The Texas Lottery Commission announced Monday morning that it is moving to ban courier companies days after Texas Lottery Commissioner Clark Smith resigned amid growing pressure from top Texas lawmakers who are investigating the system.

Texas Lottery Commissioner Clark Smith resigned amid legislative scrutiny over the use of lottery couriers and after facing criticism for his knowledge of legal details in his role.

Clark Smith, one of five members of the commission, stepped down Friday as lawmakers have raised questions about the role of lottery couriers and agency governance.