Security is being improved at a 17th Century Elizabethan estate following a spate of thefts.
Kirby Hall near Corby has fallen victim to three break-ins since last August.
The latest incident has led to English Heritage urging anyone who sees any suspicious behaviour in the area to report it to police in a bid to reduce the number of break-ins that the site has suffered in recent months.
Heather Redmond, area manager for English Heritage, said: “This is the third time since August last year Kirby Hall has been broken into, the damage has now been repaired and the property is again open to the public.
“Security is being improved at the hall in order to discourage future vandals or thieves from damaging the property or stealing goods.
“We kindly ask that visitors and members of the local community are vigilant and report any suspicious behaviour in or around Kirby Hall to the police.
“We are working very closely with Nadia Norman, PCSO from Northamptonshire Police, East Northants Community Team to ensure that no further break-ins take place.”
Kirby Hall is one of England’s greatest Elizabethan and 17th Century houses.
It was begun by Sir Humphrey Stafford and purchased by Sir Christopher Hatton, one of Queen Elizabeth I’s ‘comely young men’ and later her Lord Chancellor.
The mansion is rich in decoration and in history and can be enjoyed by visitors Wednesday to Sunday from the end of March through to the end of September.
Nadia Norman from Northants Police’s Futures Programme said: “We are taking the recent incidents at Kirby Hall very seriously and always recommend members of the public report any suspicious behaviour or incidents, whether that is from individuals, groups or vehicles, to the police by calling 101, or dial 999 in an emergency.
“The safer community team can also be contacted via email: SCTEastNorthantsNorth@northants.pnn.police.uk.”