The window and a wall of a house on Schoenerstraat were damaged by an explosion in the middle of the night. The police found remnants of fireworks and conducted an investigation at the crime scene and in the area. On August 14, a 23-year-old man from Alkmaar was arrested. He is suspected of involvement in the explosion. Earlier, a 38-year-old man from Den Helder was arrested. He has been released but remains a suspect.