Lincoln Police officers are investigating a series of suspicious incidents that occurred in connecting Birchwood streets in one night.
Between the times of 5.30pm and 10pm on December 2, unknown offenders entered a front garden on Waltham Road and were seen to be shouting, swearing and shaking a stick at the occupant in order to intimidate them.
In the space of the 20 minutes, offenders attempted to steal a motorbike helmet that was left unattended with a motorbike on Lissett Close.
The offenders were disturbed however and fled the scene through gardens and out onto Doddington Road.
The final incident has occurred on Elvington Road, whereby three greenhouse windows and a garage window were smashed.
Police say it is not yet known if all three incidents concern the same offenders.
Anyone who saw or heard anything should contact Lincolnshire Police on 101, quoting incidents 318,326 or 411 of December 2.