Electric fence equipment stolen from Worlington is being linked to two previous thefts in the village.
The incident happened between 3am and 7am on Friday in a field off Mildenhall Road.
A Falcon electric fence control box and battery, valued at £200, were stolen.
The theft is being linked with two previous thefts in Worlington.
The first incident involved an electric fence unit being stolen from a field in Church Lane between 5am on Friday, January 31, and 8.30am on Saturday, February 1.
The second incident took place between 7am and 2.30pm on Thursday, when another electric fence energiser unit was stolen from a field in Mildenhall Road.
Anyone with information about any of these incidents should contact Suffolk Police at Mildenhall Police Station on 101, or Crimestoppers, annonymously, if necessary, on 0800 555111.