Rostyslav Novozhenets, deputy head of the Ukrainian Republican Party, told Ukrainian News he received the information from Demjanjuk's son, John Demjanjuk Jr., Haaretz reported Thursday.
Demjanjuk, who was born in the Ukraine, moved to the United States after World War II but had kept in contact with his homeland. Novozhenets said Demjanjuk's son has requested the burial place not be divulged.
Demjanjuk was 91 when he died in March at a retirement home in Germany. He had spent decades fighting allegations over his role in the Holocaust but was convicted last year of assisting in mass murder while a guard at the Sobibor camp in Poland.
Susan Sarandon 'very excited' about daughter's pregnancy
Interpol investigating stolen passports on missing flight