An investigation is underway after a man was stabbed on board a train in Hampshire.
Police officers were called to St Denys station at 11.45 this morning.
Paramedics also attended and a young man has been taken to hospital for treatment where his condition is life threatening.
Officers remain on scene as enquiries into the incident continue. British Transport Police are asking any witnesses to contact them by text 61016 or call 0800 40 50 40 quoting reference 222.
More details follow..