A 16-year-old Swedish teenager will be brought before a detention judge in Copenhagen during the day, writes the Copenhagen police on X.
The boy has just been extradited from Sweden to Denmark.
He is suspected of having recruited and assisted persons who have been hired to commit murders and other serious crimes in Copenhagen.
In total, he is suspected of aiding and abetting three attempted murders, three cases of possession of weapons and one explosion, reports the Danish news agency Ritzau.