A yearslong criminal investigation that ensnared Michigan State University’s former president over her role in the Larry Nassar sexual abuse scandal, as well as a onetime dean and an ex-gymnastics coach, is at an impasse as prosecutors and the university clash over the release of documents, the state attorney general said on Wednesday.

The status of the inquiry had been thrown into confusion after an announcement a day earlier that it had been suspended.

The attorney general, Dana Nessel, said on Wednesday that a previous statement by a spokeswoman for her office “was inadvertently misleading and demands clarification.”

“For the record,” she said, “I remain deeply committed to finding the truth about who knew what about Larry Nassar at M.S.U. Our department has continued to make it clear — over and over again — that we are at an impasse with M.S.U. as we continue to seek release of more than 6,000 documents the university continues to withhold from our office.”