3.6 kilometres of copper cable has been stolen from a 38 thousand volt powerline in Co Kilkenny.
The ESB says nine spans of power line were stolen from between Kilkenny and Ballyhale on Wednesday night.
ESB Networks says metal theft is a dangerous activity, with thieves putting their lives at risk.
In recent years, at least three serious injuries and one fatality have been linked to metal theft from ESB Networks.
Advertisement