Bikes worth more than £2,000 have been stolen from St Albans City station.
British Transport Police (BTP) are re-issuing an appeal with new images of three men they want to talk to about the theft which happened on Friday, 6 May.
PC Jonathan Jackson said: “The thieves arrived on a northbound train at around 12.30pm.
“They loitered at the bike racks for a while before taking five bikes and leaving via the exit on platform 4.
“Today I am issuing three images of men who I believe will have information about these thefts.
“If you recognise them, please let us know.”
Anyone with information is asked to contact British Transport Police on 0800 40 50 40, or text 61016, quoting reference 268 of 17/5/16. Information can also be passed anonymously to the independent charity Crimestoppers on 0800 555 111.
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