Boston ? An immigration judge has ordered a 91-year-old retired factory worker deported back to his native Lithuania because he lied about his part in the Nazi destruction of Warsaw’s Jewish ghetto in 1943, federal prosecutors said Thursday.

“Vladas Zajanckauskas was an accomplice in Nazi mass murder,” said Eli Rosenbaum, director of the Justice Department’s Office of Special Investigations. “Had he told the truth after the war, he never would have been permitted to enter this country.”

Zajanckauskas’ attorney, Thomas Butters, did not immediately return a call Thursday and a phone number for Zajanckauskas could not be located.

Immigration Judge Wayne R. Iskra’s order, issued Aug. 2 and delivered to the Justice Department on Tuesday, ended an appeal, but the department said Zajanckauskas hasn’t yet left the country. The order comes more than two years after a federal judge revoked his U.S. citizenship.