Marius Borg Hoiby has no royal title or duties, but as the stepson of the heir to the throne, his arrest has cast a cloud over Norway’s popular royal family.

Police in Norway have arrested the 27-year-old son of Crown Princess Mette-Marit on suspicion of rape, saying the alleged victim was "unable to resist the act."

Norway's royal family found itself embroiled in an intensifying scandal Tuesday after the son of the country's crown princess was arrested on suspicion of rape.Marius Borg Hoiby, 27, was arrested Monday on a preliminary charge of having "sexual intercourse with someone who is unconscious or for other reasons is unable to resist the act,