A former Auschwitz guard is taking the stand for a second day Wednesday to answer judges' questions about his role at the death camp in Nazi-occupied Poland.

SS Sgt. Oskar Groening told the court in Lueneburg on Tuesday that he helped keep watch as thousands of Jews were led from cattle cars directly to the gas chambers, and that he shared "moral guilt" for what happened to them.

The 93-year-old, who is charged with 300,000 counts of accessory to murder, said he witnessed individual atrocities but did not acknowledge participating in any crimes.

Eva Kor, a survivor of the death camp, is scheduled to testify after Groening. Some 60 survivors and relatives from the U.S., Canada, Israel and elsewhere have joined the trial as co-plaintiffs, as allowed under German law.