An 18th Century water mill that used to supply paper for the Bank of England has been gutted by fire.
More than 50 firefighters tackled the blaze at Bere Mill in London Road, Whitchurch, shortly after 22:00 GMT on Wednesday.
Hampshire Fire and Rescue said crews had fought to save parts of the historic building and would remain at the scene damping down.
Bere Mill is now a family home that opens its gardens to the public.
The Saxon building was the original paper mill for Portals, the company which first supplied notes to the Bank of England in 1718.
No-one was hurt in the blaze.