STORRS, Conn. (AP) Auditors say the National Science Foundation has frozen more than $2 million in grant money to the University of Connecticut after a foundation investigation found two UConn professors used grant money to buy products from their own company.

State auditors John Geragosian and Robert Ward notified Gov. Dannel P. Malloy on Friday about the frozen grants. They also say UConn officials failed to inform auditors about the suspended grants as required by law.

The auditors say the two unnamed professors initiated $250,000 in purchases using foundation grant money to buy 15 acoustic modems from their company, Aquatic Sensor Network Technology.

UConn officials say they would have blocked the purchases if the professors had disclosed the conflict of interest involving their company. UConn denies violating reporting requirements.

The Mansfield-based company hasn't returned a message seeking comment.