HGVs had their number plates stolen and rear light wires cut while parked by the M6 overnight on Tuesday (August 5).
The two heavy goods vehicles were parked just off the Shap turn off at Junction 39, at Ardendale, when they were targeted overnight between Tuesday and yesterday (August 6).
Cumbria Police said each vehicle had its rear registration plates taken and the wires of the rear lights cut.
Anyone with information is asked to call non-emergency 101 or Crimestoppers anonymously on 0800 555 111.
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