The police arrested six men at the Kirkkonummi Aavaranta refugee reception centre in the name of public order and security.
The arrested are Iraqi nationals, who came to Finland this autumn are suspected of public incitement.
The police decided to arrest them from intelligence gathered. The investigation is still at an early stage, and preliminary hearings will be handled by the Central Bureau of Investigation.
The senior investigating officer has not yet given any more information about the case.
