Vandals have jumped onto unset concrete, leaving deep footprints and damaging work at Sheringham's heritage North Norfolk Railway station.
Police say the incident happened at some point on the evening of the Sheringham Christmas lights switch-on, Friday November 18.
They are appealing for anyone who has information, or witnessed what happened, to contact them.
Ring PCSO Royston Seabrook on 101 or call Crimestoppers anonymously on 0800 555 111 or through their anonymous online form at www.crimestoppers-uk.org
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