It's been confirmed that Dorchester Prison is to close and discussions are underway to end the lease at Dartmoor Prison.
Elsewhere, Portland's Verne Prison will be turned into an immigration detention centre.
The former Victorian military barracks, transformed into a jail more than 60 years ago, will become a Home Office immigration unit housing people waiting to be removed from the UK.
Duncan Sleightholme reports:
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A derailed train at London Paddington means that trains running to and from this station are disrupted.
It will be a cloudy and in places damp start with some coastal and hill fog.
Any early rain or drizzle will soon clear and the rest of the day looks set to be dry.