An accountant who once worked for the U.S. Marshals Service is suing the agency, alleging that an employee of the service did a shoddy job handling forfeitures including some investments related to the fraud of jailed financier Bernard Madoff.

The lawsuit filed last month in federal court in Manhattan claimed that a man overseeing the sale of assets undervalued millions of dollars in assets, selling them without public notice or competitive bidding. A message left Monday with a spokesman from the office was not immediately returned.