Two men have been detained suspected of being behind an explosion in Västerås at the end of May, reports P4 Västmanland.
The explosion occurred in a residential area and resulted in material damage, but no one was physically injured.
The two men, who are in their 20s and 30s, largely deny the allegations. According to the prosecutor, the motive for the act is still unknown and one does not rule out that more people may be involved.