The people were arrested on Tuesday morning in a coordinated effort by the police's national task force in Eskilstuna, Linköping and Strängnäs. According to Säpo, the persons are suspected of having plans for terrorist crimes in Sweden.
"The Security Service often needs to intervene early to avert a threat. We cannot wait for a crime to be completed before we act," says Susanna Trehörning, Deputy Head of Unit for Counterterrorism at the Swedish Security Service.
The suspected crime must have international links to violent Islamist extremism.
"The current case is one of several that the Swedish Security Service has worked on after the protests that were directed against Sweden in connection with the high-profile Koran burning in January and where international calls for attacks occur," says Susanna Trehörning.
Text is updated