Officers from BTP have today released a CCTV image after a man was stabbed outside Bow Church railway station in Bow.
The offence is reported to have happened at 10.08am on Friday 21 December 2018.
The victim, a man in his fifties, suffered a single stab wound to the stomach, his injuries were not life threatening.
The offence followed an argument between two men on board a DLR service.
Officers believe the man shown in this CCTV image may have information which could help their investigation.
DC Mike Ganly said: “This was a serious assault and we are working to understand exactly what happened. I would urge anyone with information to contact us as soon as possible, especially if you recognise the man in this CCTV image.”
Anyone who recognises the man is asked to contact BTP by texting 61016 or calling 0800 40 50 40, quoting reference number 212 of 21/12/18.
Alternatively you can call Crimestoppers anonymously on 0800 555 111.