ST. PAUL, Minn. (AP) - A new state audit projects Minnesota spent at least $115 million in estimated overpayments in a five-month period last year for people who got incorrect eligibility determinations from the MNsure system.

Reports say the projected tab for overpayments related to the state health insurance exchange comes in a new report by Legislative Auditor James Nobles. The report found state officials failed to make sure people met eligibility requirements when enrolling through MNsure in the Medical Assistance and MinnesotaCare programs.

According to the report, the projected cost to the state was between $115 million and $271 million.

The audit was a follow-up to a 2014 report by Nobles on problems determining eligibility by the state Department of Human Services. The new report says the agency didn't fix nine of 11 problems detailed in the earlier report.