Police said they were contacted earlier this week over an incident which took place in the Castlemilk area of Glasgow at some point in the last year.
Two boys, aged nine and 12, are believed to have been attacked. Two teenage boys aged 14 and 15 have been arrested in connection with the incident.
A police spokeswoman said: "We received a report of two boys, aged nine and 12, being subjected to an assault in the Castlemilk area.
"We can confirm that two boys, one 14 years old and one 15 years old, have been arrested.
"A report will be submitted both to the procurator fiscal and the children's reporter."