Officers investigating the theft of a valuable violin on a Thameslink train have released CCTV images of a man they wish to speak with.

The theft happened at approximately 5.20pm on June 11. The victim was heading towards Haywards Heath when they accidentally left their bag on board containing the violin.

Another man then approached and took the bag, leaving the train at East Croydon station.

Officers believe the man shown in this CCTV image may have information which could help them investigate.

If you know who he is, contact BTP by sending a text to 61016 or by calling 0800 40 50 40 quoting reference 498 of 11/06/2019.

Or you can call Crimestoppers anonymously on 0800 555 111.