The defense team for former SS Sgt. Oskar Groening, convicted of 300,000 counts of accessory to murder for his service in Auschwitz, has filed an appeal in his case.
Groening was convicted last week and sentenced to four years in prison, but will remain free until his appeals are heard.
His lawyers say he deserves a sentence reduction for the amount of time it took to bring him to trial.
Attorney Hans Holtermann filed the appeal Monday, arguing that judges incorrectly rejected reducing the sentence because 94-year-old Groening was only brought to trial this year even though his case has been known for decades, the dpa news agency reported.
Kathrin Soefker, a spokeswoman for Hannover prosecutors, says her office has not yet decided whether to file its own appeal.