- The large spectrum of potential actors is so much greater than ever, says Fredrik Hallström, head of counter-terrorism at Säpo, to SVT.

What patterns do you see in terms of potential perpetrators?

- Generally speaking, it is very difficult to answer, because it is not a homogeneous group.

It can strike completely differently based on what background you have or if you have some type of diagnosis or other.

Common is that there is a radicalizing force, says Fredrik Hallström and continues:

- We primarily see signs that young people have been exposed to and consumed violent right-wing extremist propaganda online.

It is a trend that we think we see in our large flow.

Hallström tells more in the clip above.