Police in Copenhagen raided several apartments in the Nørrebro district, as well as addresses elsewhere in Greater Copenhagen, on Wednesday.
According to Chief Inspector Jørgen Skov, the raids were part of an ongoing investigation into a group of people who are suspected of holding illegal guns.
At least two men arrested
A witness told Ekstra Bladet that the police arrested a man in the notorious Nørrebro housing estate Mjølnerparken.
"They went to his apartment. Then they tested him for DNA and took him away," the witness said.
Another man was arrested in Taastrup, while the police continued with more raids in Brønshøj.
READ MORE: Young man arrested in connection to February terror attacks
Unclear connection to terror investigation
It is unclear whether Wednesday's actions had anything to do with the ongoing investigation into the terror attacks in mid-February.
There are currently five young men in custody in relation to Omar El-Hussein's attacks. They are all charged with assisting the 22-year-old carry out his attacks.