The Associated Press

 Utah has launched a criminal probe and two other misconduct investigations into a medical waste burning facility, Gov. Gary Herbert announced Thursday afternoon.

Herbert asked the Utah attorney general's office on Thursday to investigate any criminal wrongdoing at the at the Stericycle incinerator in North Salt Lake City. The state environmental quality department is also investigating whether Stericycle violated emissions permits, and the state labor commission is investigating possible worker-safety violations.

The investigations were prompted by accusations from a purported former employee who said the company ignored rules about radioactive waste in the plant.

Phone and email messages left with Illinois-based Stericycle were not returned Thursday afternoon.

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