A 16-year-old from Barrow has been arrested this morning on suspicion of assault causing grievous bodily harm.
The incident took place at about 6pm on May 10 in Barrow Park, Abbey Road.
Police and paramedics attended the scene.
A 16-year-old male was taken to Furness General Hospital with head injuries. He was later transferred to Alder Hey Hospital, Liverpool. His injuries are not believed to be life-changing at this time.
Anyone with information is encouraged to contact police on 101, quoting incident number 163 of May 10.
Alternatively, you can contact the independent charity Crimestoppers, anonymously, on 0800 555 111.
