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.
Work begins on Haut du Mont Memorial Garden
A memorial garden to honour the victims of the Pier Road gas explosion is set to open by the fourth anniversary of the disaster, with work already commencing.
Inflation in Jersey at 2.8%
Prices in Jersey rose by 2.8% in the year to December.
Review rules out benefits overlap for pensioner carers
Pensioner carers in Jersey will remain unable to claim the the full Home Carers Allowance benefit as well, following a review of the support available.
Ignoring data protection may cause Jersey to 'lose our economy'
Jersey's Information Commissioner is warning businesses and organisations that are not taking data protection seriously that the 'time for excuses is long gone'.
Draft law scraps time limits on abortions in Jersey
Women will be able to have an abortion at later stages of their pregnancy if a new termination law is adopted.
Divide over approach to gender guidance in schools
A Jersey politician is calling for the current transgender inclusion guidance in schools to be replaced.
Three charities awarded £500 grants in community campaign
Channel 103 and Standard Bank Offshore's Brighten Up Blue Monday campaign has awarded three Jersey charities £500 each, after a record-breaking number of nominations.
Ministers back principle of social media 'restrictions' for under 16s
As momentum gathers in the UK and France for a child ban on social media, Jersey's ministers have indicated they support the principle of more restrictions here.
