Excerpt:
The Nordics are one of the biggest problem areas for radicalisation in Europe, according to a counter-radical Islamic expert from the Quillium Foundation.
The Islamic State (IS), an extremist group based in Syria and Iraq which declared a "caliphate" or Islamic State in the region, boasts of home grown recruits from many corners of the world.
The most highly visible Western recruits - often seen in violent propaganda video clips on the internet - seem on the whole, to come from the UK.