Police requested for Marius Borg Hoiby to remain in custody for four weeks due to risk of reoffending following his arrest on Monday. The son of Norway's crown princess is to go on trial this week to face charges related to alleged rapes and assaults of former girlfriends.

Marius Borg Høiby, the crown prince's blond stepson, is accused of 38 charges in a case that has attracted global interest.

Marius Borg Høiby arrested on suspicion of assault, making threats with knife and violating restraining order, police say