Police have received reports of criminal damage to a disused railway line in Harpenden.
Signposts and barriers were vandalised at the Nickey Line, which links Harpenden, Redbourn and Hemel Hempstead and is now used as a footpath and cycle lane.
The damage is believed to have happened between the afternoon of Friday, February 23 and the morning of Saturday, February 24.
Anyone who saw anything suspicious or has any other information should contact Herts police on the non-emergency number 101, quoting ISR 664 of February 24.
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