Police have issued a warning and stepped up patrols after a spate of burglaries.
They are investigating a number of house and shed burglaries committed during the last week, mainly in Mapperley and Arnold, with other burglaries reported in Gedling and Woodthorpe.
In nearly all cases the targeted properties were left insecure, according to the force.
Inspector Chris Jury, of Nottinghamshire Police, said: “I’d like to reassure residents that we are investigating these reports and working hard to locate those responsible.
“We have also stepped up patrols in the affected areas to provide reassurance while we continue with our enquiries.
“Most burglaries are committed by opportunist thieves who will look out for windows that have been left open and unlocked doors.
“We need people to remain vigilant and make sure they take the necessary steps to protect themselves. The most important thing to prevent burglaries is to make sure your house and outbuildings are secure by locking doors and windows.
"To reduce the chances of becoming a victim of burglary make sure that any valuables, including cash, phones or electrical items, are kept out of sight to any passers-by and the keys to your property and vehicles are kept in a safe place out of sight and well away from your letterbox.
“We are also urging people to stay vigilant, keep an eye out for any vulnerable neighbours and report any suspicious activity to us as soon as possible.”
Anyone who sees any suspicious activity in their area is advised to report it immediately by calling Nottinghamshire Police on 101. If an incident is in progress call 999.
For more advice on home security, you can click here.
To read all the biggest and best stories first sign up to read our newsletters here .
