Firefighters were called out to HMP La Moye on Saturday night to tackle a blaze in the prison kitchen.
Prison staff called 999 shortly after 8pm, and all the emergency services were dispatched as a precaution.
The fire was put out a short time later.
No one was injured during the incident, and the Prison Service says there is 'no suggestion' of any suspicious activity or the fire being started deliberately.
Contingency plans have been brought in to make sure prisoners are being fed as normal.
Jury finds Shay John Bester guilty of offences including rape
Shay John Bester has been found guilty, after going on trial for offences including six counts of rape against three young, vulnerable females.
African community groups express 'disappointment' with Deputy Ozouf sentencing
Friends of Africa Jersey and the Kenyans in Jersey Committee have come together to express their disappointment following Deputy Philip Ozouf's sentencing, and are calling for increased protection for workers who speak out about exploitation.
Island Energy to return to Royal Court over Mont Pinel gas explosion
Island Energy is set to return to the Royal Court to enter pleas after being charged by the Health and Safety Inspectorate over a gas explosion at Mont Pinel.
Jersey to introduce legal limit for PFAS in drinking water
A legal limit for PFAS in Jersey's drinking water will be introduced for the first time.
Jersey Electricity drops St Martin solar farm idea
Jersey Electricity has dropped plans for a solar farm on land in St Martin belonging to the King.
PPC won't move to block Deputy's return to States Assembly
The committee that oversees States Members' conduct says it won't being a proposition to further suspend Deputy Philip Ozouf following his conviction for immigration offences.
Jersey's next government urged to create laws preventing exploitation of workers
Charities in Jersey are urging politicians to prioritise drawing up laws to abolish modern-day slavery.
Philip Ozouf sentenced to 120 hours community service
Deputy Philip Ozouf has been sentenced to 120 hours community service and ordered to pay £5,000 for immigration offences.
