"We looked around and a 17-year-old boy, a young man, was picked up for questioning," said Ewa-Gun Westford, police spokesman.

According to Westford, the 17-year-old is still reasonably suspected despite being released after questioning.

- He is not deprived of liberty because special reasons are required if you are under 18 years.

She further states that further investigative measures need to be taken in the case.

- A hearing is not enough. We must have the objective picture, which is why he was on the scene.

Probably suspect is the lower degree of suspicion. The 17-year-old is currently only suspected of arson at Lerbäckskolan, although the police investigation group has more than 20 fires to investigate since March.

- He is part of it, but is not suspected of anything else, says Ewa-Gun Westford.

The fire at Lerbäckskolan is the only case where a prosecutor is currently connected.