Several people were Tuesday morning found dead in an apartment in the Copenhagen district of Brønshøj.
One person has been arrested and charged with murder.
“We were notified about a domestic dispute at 7:35 this morning and sent there a routine patrol, which found several people killed in the apartment,” Ove Larsen, a police officer on duty, told Ekstra Bladet.
“It was a horrible sight.”
The police have cordoned off the area around the apartment building and continue to investigate the case as familicide.
No further details have been revealed.