BERLIN — A former SS medic who served at the Auschwitz death camp has gone on trial in the northern German city of Neubrandenburg, although questions remain about whether the 95-year-old is fit enough for the proceedings to continue.

The trial of Hubert Zafke, scheduled to start in February, already has been postponed three times after presiding Judge Klaus Kabisch determined Zafke wasn't well enough to participate based on a doctor's assessment.

On Monday, Zafke was pushed into Neubrandenburg state court in a wheelchair, holding a wooden cane in his hand. The dpa news agency reports he made no comment after the charges against him were read,

Zafke is charged with 3,681 counts of accessory to murder for allegedly helping the Nazi camp function. His attorney says he did nothing criminal.