Nine people left fighting for their lives after horrifying knife attack onboard London-bound train

Nine people have been left with life-threatening injuries after passengers on a train from Doncaster to London were attacked in a mass stabbing on Saturday night (1 November).

10 people were injured and taken to hospital, with witnesses reporting that police used a Taser on a man who was holding a knife.

Two suspects have been arrested in the aftermath, with Counter Terrorism Police also joining the investigation as authorities continue to look into the details of the tragic incident.

Over 30 officers made their way to Huntingdon station in Cambridgeshire after the train made an emergency stop as multiple stabbings were reported on the 18:25 London North Eastern Railway (LNER) service bound for King's Cross.

Prime Minister Keir Starmer branded the attack as 'appalling' and 'deeply concerning' in a statement late last night.

Nine people have been left fighting for their lives in hospital (JUSTIN TALLIS/AFP via Getty Images)

As of this morning, the train remains parked at Huntingdon, with the BBC reporting that several roads around the station are shut, while forensic tents are up.

Police received calls from those on board the train at about 19:40 last night, with passengers recalling at least one person using a knife to stab people as the train made its way through Peterborough.

The train's stop at Huntingdon was unscheduled, with armed police boarding at the station to arrest two people, whose identities remain unknown, as it's believed that the incident lasted around 10 to 15 minutes.

Witnesses told the publication that there was a sense of panic onboard as passengers ran through the carriages, with some bloodied and wounded, while others claimed passengers even hid in the toilets and some frantically made their way to the front of the train.

The police force declared 'Plato' early on in the incident, which is the code word used by British police and emergency services use when responding to a 'marauding terror attack', though this decision would be reversed later on.

British Transport Police released a statement in the early hours of Sunday morning, stating: "We can confirm that at 7.42pm today (1 November) British Transport Police were called to reports of a multiple stabbing on board the 6.25pm train service from Doncaster to London King’s Cross.

"Officers immediately attended Huntingdon station alongside paramedics.

"Armed police from Cambridgeshire Police boarded the train and arrested two people in connection to the incident who have been taken to police custody."

Paramedics were quick on the scene following calls to emergency responders from the train last night (JUSTIN TALLIS/AFP via Getty Images)

Chief Superintendent Chris Casey further stated: “We’re conducting urgent enquiries to establish what has happened, and it could take some time before we are in a position to confirm anything further.

"At this early stage it would not be appropriate to speculate on the causes of the incident.

“Our response is ongoing at the station and will be for some time. Cordons are in place and trains are not currently running through the area, and there are also some road closures."

Taking to X, Keir Starmer wrote: "The appalling incident on a train near Huntingdon is deeply concerning.

"My thoughts are with all those affected, and my thanks go to the emergency services for their response.

"Anyone in the area should follow the advice of the police."