Demjanjuk during 1987 trial in Israel
Nazi war criminal convicted on more than 28,000 counts of accessory to murder, died Saturday at elderly home in southern Germany
German police say John Demjanjuk, who was convicted last year of serving as a Nazi death camp guard, has died.
Rosenheim police official Kilian Steger said the 91-year-old died Saturday at a home for the elderly in southern Germany where he has stayed since his trial ended in Munich last year.
Steger says prosecutors in nearby Traunstein are looking into the case as a routine procedure.
Demjanjuk, a retired Ohio autoworker, was deported to Germany in 2009 to face trial in Munich after being stripped of his US citizenship.
A German court found he had served as a guard at the Nazis' Sobibor death camp in occupied Poland. He was sentenced to five years in prison.
He was later released pending appeal, and lived at a German nursing home.
Demjanjuk has been in poor health for years and has been in and out of a hospital since his conviction. During the 18-month court proceedings in Munich, he often appeared in a wheelchair and sometimes lying down, with his family trying to argue that he was too frail to stand trial.
Demjanjuk had been exonerated in a separate Holocaust trial two decades ago in Israel, where he was initially sentenced to death for being the notorious "Ivan the Terrible" camp guard at Treblinka in Poland. The ruling was overturned by Israel's supreme court after new evidence exonerated him.