A horse’s tail hair was cut off in Beck Row weeks after a similar attack in Red Lodge.
The incident happened at a field beside Wildmere Lane between 8pm on Wednesday May 29 and 8.30am on Thursday.
The field was entered and one of the horses in the field had its tail hair cut off.
Police would like to hear from anyone who was in the area who noticed any suspicious activity.
Three horses had their tail hair cut in Red Lodge at the beginning of May.
Calls should be made to Sgt Christian Chisnall at the Brandon Safer Neighbourhood Team on 101 or Crimetsoppers on 0800 555 111.