Network Rail has issued a safety plea after a woman and young child were filmed ducking under a level crossing as the barriers were closing in Derbyshire.
The footage, shared on social media, shows the pair dashing across railway tracks as the warning lights flash and the barriers begin to lower at Tutbury and Hatton Station, on the Derbyshire-Staffordshire border at 15:22 on Saturday.
Brandon Roberts, who filmed the video whilst trainspotting, said he was in "disbelief" at what he saw.
A spokesperson for Network Rail said: "This kind of behaviour is deeply concerning and could have had tragic consequences."