Defence Secretary Karunasena Hettiarachi told the BBC Sinhala service that information has come to light that several Sri Lankans have secretly gone to Syria with their families.
He says of those who have gone, a few have joined ISIS. The Defence Secretary says it is still not clear when these Sri Lankans had joined the terrorist group.
However the police say they are unaware of reports that more Sri Lankans had joined ISIS.
The last known occasion of a Sri Lankan joining ISIS emerged in July last year. (Colombo Gazette)