A new report from the Norwegian Police Security Service (Politiets Sikkerhetstjeneste - PST) has found that nearly every fifth radicalized Muslim is a convert to the religion.

The PST study attempted to investigate the backgrounds of people in extreme Islamist groups. Everyone in the representative sample study by the security service had been radicalized in Norway and all were under the age of 40.

A full 88 percent of the radicalized individuals have an ethnic background other than Norwegian and over 30 different nationalities are represented amongst the radicalized individuals. Some 76 percent of the extremists have Norwegian citizenship.

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