Nine people have suffered life-threatening injuries and two people have been arrested after a train stabbing in Cambridgeshire which Sir Keir Starmer described as "deeply concerning". It is believed a man with a large knife went on a bloody rampage through the high-speed train after it left Peterborough station in Cambridgeshire. Armed police were deployed to Huntingdon station, where the train had stopped, on Saturday evening after reports that passengers were attacked. #BreakingNews #Peterboro