Ola Lunde also said in an interview with Norway's TV2 channel Wednesday that the suspect needs help. Norway's PST domestic intelligence agency, which is probing the stabbing in an Oslo supermarket as a terror-related attack because the man claimed he was plotting to kill several people, declined to comment.
The suspect, who was jailed for four weeks pending the investigation into the Jan. 17 stabbing, later said he wasn't an extremist. Police believe the victim, a woman in her 20s who survived, was picked randomly.
The man had traveled from Russia to Norway via Sweden.