The trio, who had left the state years ago, were suspected to have visited Syria and reportedly received training from the terror outfit, they said.
"Three persons, Mithilaj, Abdul Razzak and Rashid, in the age group of 25 and 30, were arrested around 3.00 pm for their links with the IS," DeputySuperintendent of Police, Kannur, Sadanandan said.
"They have been arrested based on an evidence obtained after examining their phone calls. Further interrogation is going on," he said.
The three hail from Chakkarakkal and Valappattinam in the district and had returned from Turkey recently, the police said.
Among them, 17 were from Kasaragod and four from Palakkad. They include four women and three children.
Disclaimer: No Business Standard Journalist was involved in creation of this content