Within the span of a few hours, two hand grenades detonated at different locations in the Gothenburg area. Now, a 15-year-old boy has been arrested, suspected of gross general endangerment, local media reports.
The boy is suspected of two explosions, at residential buildings in Partille and Angered, on Friday night.
Another boy, who is under 15 years old, is suspected of being involved and has been handed over to social authorities.
No one was physically injured in the explosions.
