Berlin - The Simon Wiesenthal Center is launching an 11th-hour drive to find and prosecute remaining Nazi war criminals while they are still alive.

The Center's top Nazi-hunter Efraim Zuroff was in Berlin Wednesday to launch “Operation Last Chance II” and announce new rewards for tips on the whereabouts of war crimes suspects.

The effort comes after German prosecutors said in October the successful conviction of former Ohio autoworker John Demjanjuk had set a precedent that allowed them to reopen hundreds of dormant investigations.

The 91-year-old Demjanjuk was convicted of thousands of counts of accessory to murder after a Munich court found he served as a death camp guard, the first time a suspect had been found guilty without evidence of a specific crime. - Sapa-AP