The public have been warned to be on their guard after a spate of house burglaries in Truro.
Truro Police said there had been six burglaries of homes and sheds in the Mitchell Hill area this week.
There has also been a spike in thefts of bicycles and from vehicles and police believe the incidents may be connected.
Officers have been carrying out house-to-house visits to warn people in the area of the burglaries and to urge them to take precautions against thieves.
Acting Inspector Billy McWhirter said the crime wave was very unusual in Truro.
He said: “It’s obvious that something has changed in the last few days and because of that we are putting everything into the investigation.”
Mr McWhirter said the thieves had taken mobile telephones and laptop computers from people’s homes.
The burglaries took place between 3pm and 10pm on Sunday and Monday.
Mr McWhirter said: “Police have been conducting high-visibility reassurance patrols which have involved house-to-house enquiries and reviews of CCTV footage.”
The advice from police was to ensure that all windows and doors to properties were kept locked and secure at all times and that all garden gates, outbuildings, garages and sheds are locked.
Mr McWhirter said: “Please remain vigilant – if you receive a knock at your door from someone you don’t know, always check through a window to see who it is. If you are not happy, contact the police.”
Anybody with any information is asked to contact the police on 101.