It is a younger man, says the police's press spokesperson Susanna Rinaldo.
What we can say is that he is arrested within the framework of the preliminary investigation being conducted, but what role the person has I will not be able to comment on further, she continues.
According to the police, no one has been injured. The incident is classified as general endangerment and a crime against the law on fire-hazardous and explosive goods.
It is something that has exploded. I understand that there has been damage to the door, said Nadya Norton, press spokesperson at the police, earlier in the morning.
The alarm came at 03.25. The place is at 7.30 still on site and is conducting a technical investigation.
