8 April 2015, 19:03 | Updated: 8 April 2015, 19:05
Police say they're doing all they can to find the person responsible after a man was stabbed on a train to London from Kent.
The 23 year old was attacked on a Gillingham to Victoria service as the train arrived at Swanley at around 8.15pm on Tuesday 7 April 2015.
The man was treated at the scene by paramedics and taken to hospital with multiple stab wounds.
Detective Inspector Andy Rose, leading the investigation, said: “I am appealing for anyone who witnessed this incident, and has not yet come forward to police, to do so as a matter of urgency.
“We treat all incidents involving knives extremely seriously and the public can be assured that we are doing all we can to find the person responsible.”
Officers have been analysing CCTV footage of the incident and are currently pursuing several lines of enquiry.
The train was taken out of service and examined by specialist forensic officers.
Anyone with information is asked to contact British Transport Police on 0800 40 50 40, or text 61016, quoting S/B6 of 08/04/2015. Information can also be passed anonymously to the independent charity Crimestoppers on 0800 555 111.