German security and intelligence chiefs are due on Monday to face questioning about the car-ramming attack that killed five people and wounded more than 200 at a Christmas market 10 days ago.
They will be quizzed about possible missed clues and security failures before the December 20 attack in the eastern city of Magdeburg, where police arrested the 50-year-old Saudi psychiatrist Taleb al-Abdulmohsen at the scene.
