Court filings have revealed a federal investigation into the financial practices of The Nugget in Reno under the ownership of the Ascuaga family.

The court filings are part of an ongoing legal dispute between the Ascuagas and Wolfhound Holdings LLC, the company that purchased the hotel-casino in 2013.

An investigation by the Financial Crimes Enforcement Network was detailed in a lawsuit filed Wednesday by Wolfhound Holdings in Washoe District Court. The holding company says the Nugget was investigated for failing to meet federal record-keeping and reporting requirements.

Michonne Ascuaga was the CEO of The Nugget for 16 years. She said in a statement that she was never the target of the investigation, which arose from an audit-type examination by the Internal Revenue Service.