Mitch Evans (L) and Marius Borg Hoiby compete on the Formula E Simulator at the BRITS official aftershow party, in partnership with Tempus Magazine, at the Intercontinental London - The O2 on 21 February 2018 in London, England (Ian Gavan/Getty Images for Tempus Magazine) The son of Norway's Crown Princess Mette-Marit has admitted carrying out a cocaine and alcohol-fuelled assault on his girlfriend. Police arrested Marius Borg Hoiby, 27, on 4 August following a night-time row at an apartment in Oslo. He has been accused of causing bodily harm and injuring a woman with whom he was having a relationship.

The son of Norway's Crown Princess Mette-Marit has admitted carrying out a cocaine and alcohol-fuelled assault on his girlfriend, in a statement released by Norwegian broadcaster NRK on Wednesday. Police arrested Marius Borg Hoiby, 27, on 4 August following a night-time row at an apartment in Oslo. He has been accused of causing bodily harm and injuring a woman with whom he was having a relationship.

According to Norwegian media reports, police found a knife stuck in one of the walls of the woman's bedroom at the apartment. The day after the incident, the woman received medical treatment, but was not admitted to hospital, her lawyer said. In his statement to NRK, Hoiby said that "something happened that should never have happened.

" Princess Ingrid Alexandra, Marius Borg Hoiby, Crown Prince Haakon and Crown Princess Mette-Marit attend the celebrations of Princess Ingrid Alexandr.