OSLO, Norway (AP) — Oslo police on Friday announced charges against Marius Borg Høiby, the eldest son of Norway’s crown princess, on multiple counts including rape, sexual assault and bodily harm after a monthslong investigation of a case that involved a “double-digit” number of alleged victims.

Marius Borg Hoiby, the stepson of Crown Prince Haakon, was charged with rape and sexual assault after a monthslong police investigation that has caused turmoil for the royal family.

The son of Norway's crown princess is suspected of three rapes and 23 other offences, police said on Friday. Marius Borg Høiby, who is the stepson of Norway's future king, was arrested three separate times last year, in August, September and November.