Thieves have stolen copper from two sub-stations in the Black Country. The thefts took place at Moor Lane in Rowley Regis between 24 January and 10 February and Stanhope Road, Smethwick, between 5 and 19 February.
West Midlands Police said these latest incidents bring the total number of coppers thefts in the Sandwell and Dudley areas to 18.
It is thought the copper is being sold on the scrap metal market. Police are asking residents to be vigilant.