Three men were hospitalised and one has been arrested as four teenagers were stabbed after a brawl between themselves at Oldham Leisure Centre on Thursday afternoon (14 November).
Shortly before 4.30pm, police were called to reports of a stabbing at Oldham Leisure Centre on Middleton Road in the town centre.
Four teenagers, aged between 17 and 19 years old, received stab wounds following a dispute between themselves.
Three of them are in hospital and police say their injuries are not believed to be life threatening.
One man has since been discharged from hospital.
A 19-year-old man has been arrested on suspicion of Section 18 assault and remains in custody for questioning.
Greater Manchester Police say enquiries are ongoing.
Anyone who may have information about those involved, please contact the police on 101 quoting incident number 2093-14/11/19 or Crimestoppers, anonymously, on 0800 555 111.