Extra prison officers have been deployed to HMP Moorland - the jail where former footballer Adam Johnson is being held - following an "incident" involving several inmates in which one prisoner was injured.
The Doncaster prison houses around 1,000 inmates, including Johnson who was jailed for six years earlier this year for engaging in sexual activity with a 15-year-old girl.
A spokesperson for the Prison Service said the injured prisoner did not require hospital treatment, and added that no staff members were hurt.
In a statement, a spokesperson for the Ministry of Justice said: “Specially trained staff have successfully resolved an isolated incident involving a small number of prisoners on one wing at HMP Moorland.
“We are absolutely clear that prisoners who behave in this way will be punished and could spend significantly longer behind bars."
HMP Doncaster is a Category C prison and has six blocks.
HM Inspectorate of Prisons' latest review of HMP Doncaster in February found "levels of violence were high" in the jail.
The incident comes in a turbulent period for the Prison Service in which it faced accusations of being "in meltdown" when staff walked out over health and safety concerns.