The boys are suspected of approaching and attacking three girls, aged 11 to 13, at a public swimming area in Örebro, central Sweden on Thursday.
“The girls were sexually harassed. One of the cases has been classified as child rape,” said Peter Persson of the Örebo police to the TT news agency.
Persson said the boy facing the most serious charges is 13 years old. He said the alleged rape crime did not involve intercourse, adding that the boy had used his hands.
Although one of the boys is above the age of criminal responsibility, Persson said the case will most likely be handed over to social services.
The organizers of the football tournament, Örebro SK Ungdom, have said the police will decide on the appropriate course of action.
“This has been terribly upsetting, but there’s nothing more we can do,” Peter Johansson, the head of Örebro SK Ungdom told TT.
Moreover, Johansson explained that the incident took place on a free day when the boys had no games.
The annual tournament is being held for the 14th time.
“It’s a small tournament with the best boys' teams participating from a few elite clubs,” Johansson said.