German prosecutors are asking for 3½ years in prison for a 94-year-old former SS sergeant who served at the Auschwitz death camp in Nazi-occupied Poland.

Oskar Groening has admitted guarding prisoners' baggage after they were unloaded from cattle cars onto the camp's ramps, and collecting and counting money stolen from the new arrivals and sending it to Berlin.

The dpa news agency reported prosecutors said in closing arguments Tuesday that his role helped the camp function, and he should be convicted of 300,000 counts of accessory to murder for those killed while he was there.

When his trial began in April, Groening said he felt moral guilt but it was up to the court to decide if he was legally guilty of a crime.

A verdict is expected this month.