Up to 15 vehicles were damaged in a single day in the Lake District.
The damage was caused on Friday, March 29 in Elterwater, throughout the day while they were parked on the B5343 passed the junction of Mill Row.
So far police said they received two reports from vehicle owners but it is believed up to around 15 vehicles may have been damaged in the same way.
Police want to identify witnesses who were in the area and saw anyone acting suspiciously.
Anyone with any information is asked to either report it online at www.cumbria.police.uk/report-it , quoting incident number 244 of 29 March 2024 or call 101.
Alternatively, you can contact Crimestoppers, anonymously, on 0800 555 111.
