Ponzi schemer Bernie Madoff's family is coming apart at the seams, with his two sons refusing to talk to their parents and one getting hit with divorce papers the day of his dad's arrest.

By ANGELA MONTEFINISE, JEANE MACINTOSH & STEFANIE COHEN

Ponzi schemer Bernie Madoff's family is coming apart at the seams, with his two sons refusing to talk to their parents and one getting hit with divorce papers the day of his dad's arrest.

Brothers Andrew and Mark Madoff have not uttered a word to their disgraced financier father since they turned him in to authorities on Dec. 11.

The sons also have not spoken to their mom, Ruth, 67, a kosher-cookbook editor being investigated by the feds for possibly keeping financial records for her husband's company.

"I can positively say the boys have not spoken to their parents at all," said a source close to the Madoffs.

"Obviously, this is a tough time for this family."

It became even tougher for Andrew, 42, when his wife of almost 17 years, Deborah, 41, filed divorce papers in Manhattan Family Court on the same day his dad was cuffed.