September 21, 20.02, Assault, Severe, Tyresö

A teenage boy has been assaulted by a group of unknown persons at the back of a store in Granängsringen. The persons used a blunt instrument during the assault and the boy's relatives took him to medical care. 
The boy is relatively lightly injured but among other things due to the blunt instrument the assault is classified as serious. 
The background to the event is unknown.