Gov. Greg Abbott has ordered the Texas Rangers to investigated the bulk purchase of millions of dollars with worth of lottery tickets.

The Texas Lottery on Monday banned online lottery ticket sales by third-party courier services after Lt. Gov. Dan Patrick and lawmakers had questioned the practice. The policy is effective immediately and “aligns with legislative efforts to address serious concerns raised by players and state leadership regarding the integrity,

The announcement came as lottery officials have faced scrutiny over a controversial $83.5 million lottery ticket that was purchased through courier service.