Suspect in Copenhagen mall shooting that killed three was known to psychiatric professionals, police say

Copenhagen, Denmark (CNN)A man arrested on suspicion of killing three people and wounding several others during a shooting at a shopping mall

in Copenhagen was known to psychiatric professionals, Danish police said Monday.

The shooting unfolded on Sunday at multiple locations inside Field's, a shopping center in the Danish capital

Social media footage showed people running through the mall and heavily armed law enforcement officers on the scene.

At a press conference on Monday morning, Copenhagen's Head of Police Soren Thomassen said two 17-year-old Danish citizens

one male and one female, and a 47-year-old Russian national had been killed in the gunfire.

Two other Danes and two Swedish nationals had received gunshot wounds and were in hospital in critical but stable condition

while several others sustained minor injuries while leaving the mall, Thomassen said.

As of Monday, only one of the four injured remained in critical condition

according to Rigshospitalet hospital, where the majority of victims are receiving care.

A 22-year-old Danish man was arrested in connection with the shooting and is currently the only suspect

Thomassen said there is no indication the suspect was acting with others but an investigation was ongoing

Earlier, the police had said they detained the suspect 13 minutes after receiving the first emergency call

and that he was "carrying a rifle and ammunition" at the time of his arrest

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