Lincolnshire Police are warning residents in Lincoln that just because the weather is improving, windows are doors should still be locked at night to stop burglaries.
The latest incident took place on March 27 between 9pm and 3am on Kenner Close, off Moorland Avenue.
An offender got into the house by reaching through a small unlocked ground-floor bedroom window, in order to open the main window.
The offender then went through the elderly couple’s house, stealing cash and cards from the living room.
Officers say opportunistic criminals look out for houses with open windows to target during warmer weather, undeterred by people being at home.
Police recommend that doors and windows should be locked, particularly if you are not in the room.
Anyone with information should contact Lincolnshire Police on 101 or Crimestoppers anonymously on 0800 555 111.