The case concerns three brothers and their mother, a woman in her 50s.
One of the brothers has admitted that he planted the explosive device. The Oslo District Court considers the suspicions in that case strong. As for the woman and the other two brothers, the suspicions are considered relatively strong. The three deny any wrongdoing.
The investigation concerns terrorist crimes, and according to prosecutors the suspects intended to kill people and cause major material damage.
No one was injured in the explosion, and the material damage was minor.
