Prosecutors are still looking to charge Bernard Madoff’s wife, Ruth, and other relatives, according to court papers filed by the Ponzi king’s former director of operations.

Daniel Bonventre, who’s charged with helping the fraudster cook his books, claims he and other ex-employees are being squeezed to help “build a case against … the people closest to Mr. Madoff and principal benefactors of his fraud.”

The Manhattan federal court filing today identifies the feds’ targets as “friends who invested extraordinary sums with (Madoff), as well as family members … including his wife, brother, niece, nephew and two sons.”

Madoff’s older son, Mark, hung himself with a dog leash last month on the second anniversary of his father’s arrest.

In court papers, defense lawyer Andrew Frisch said prosecutors have repeatedly tried to flip Bonventre, 64, since his February arrest.

Last month, they mounted a “midstream obstruction” of his defense by asking Bonventre’s lawyers to freeze nearly $1 million they got from him, and threatening “court action” if they don’t comply, Frisch wrote.

A spokeswoman for the Manhattan U.S. Attorney’s Office declined to comment.

Also today, another former Madoff employee said she should be sprung from the slammer because prosecutors have begun seizing the millions she allegedly reaped from her ex-boss’ $65 billion fraud.

Annette Bongiorno’s TD Bank accounts, her husband Rudy’s E-Trade accounts and their joint Chase savings account have all be seized, her lawyers wrote.

(Source: NY Post)