A lawsuit filed by a former employee of Bernard Madoff's New York investment firm alleges rampant cocaine use and a rowdy party corporate culture.

The supplemental filings to the suit also add new defendants to the civil case, including Bank of New York and JPMorgan Chase, the New York Daily News said Wednesday.

The plaintiffs alleged that Madoff Securities was ripe with debauchery, including parties featuring topless cocktail waitresses and so much cocaine that the office was nicknamed the "North Pole."

The News said the allegations were filed Tuesday night by an attorney who met with Madoff in prison this summer.