LOS ANGELES (AP) — Richard Dreyfuss says his father and uncle owe him nearly $4 million on an unpaid loan.

The Oscar-winning actor sued the pair in August over the loan, but amended his lawsuit this week to raise new allegations of financial wrongdoing. Dreyfuss’ complaint states he loaned his father and uncle $870,000 in the early 1980s to help them with a 13-story office building they own in downtown Los Angeles.

Gilbert Dreyfuss, who is an attorney representing himself and Norman Dreyfuss in the case, denied in court documents that the loan was that old and stated that his nephew didn’t have a large enough stake in the building to warrant repayment. He did not immediately return calls and e-mail messages seeking comment.

The lawsuit claims Gilbert and Norman Dreyfuss may have diverted millions of dollars from a $6 million judgment they won against the state of California over a lease arrangement in the building.

Richard Dreyfuss is seeking to look at accounting records for the building, and repayment of the loan and interest.

The suit also states the Dreyfuss brothers failed to properly repay a $13 million loan on the building, resulting in a lender starting foreclosure proceedings on the property.

Gilbert Dreyfuss acknowledged last month in court filings that he made some mistakes in handling of the judgment money, but said payments on the loan are current. He stated he had used his own money to fight the case against the state and make improvements to the building.