Federal authorities announced new charges Thursday against 15 defendants in Minnesota, accusing them of stealing more than $90 million from taxpayer-funded Medicaid programs in the latest chapter of the state’s sprawling Somali fraud scandal.

Many of the defendants are Somali or Somali-American. The cases target seven Medicaid programs, including a housing stabilization initiative that ballooned from a projected $2.5 million annually to over $104 million, and an autism services program that surged from $600,000 to more than $400 million.

“This is not the end of our work in Minnesota. This is the beginning,” said DOJ Assistant Attorney General Colin McDonald, warning the total fraud across state programs could reach $9 billion or higher.

The announcement came hours after Feeding Our Future figure Aimee Bock was sentenced to over 41 years in a separate $250 million fraud case. The DOJ is expanding its fraud strike force in the state.