Visits to the Island's prison have been temporarily suspended.
Government says it's after a small number of prisoners have tested Covid positive.
The decision has been taken by the prison governor, with all prisoners, staff and close contacts now being offered tests.
The wing has now been placed in the Black regime, which restricts the amount of time offenders can spend outside their cells.
The Red regime is operating in the rest of the prison, allowing the wings to operate normally in their own wing bubble.