Several players in the football club IFK Lidingö's boys' team were injured when lightning struck during a training session on Thursday evening, as a severe thunderstorm swept over the Stockholm area.
Three boys were seriously injured. A total of eight were taken to hospital.
The boys were standing under a tree when the lightning struck.
IFK Lidingö writes on its website that the club has cancelled its children's and youth activities on Friday and that a crisis group has been set up.
"We're clearly feeling very bad as a club right now and are only thinking of those affected", writes club manager Markus Karlsson in a message to TT.
Karlsson writes further that the club will meet with the affected team's players and relatives on Friday – and that the Red Cross, Lidingö municipality, and a priest are involved.
"We are fully focused on the work that needs to be done right now", writes Markus Karlsson.