Ten people have been injured, nine critically, after a mass stabbing on a train in the United Kingdom.

British Transport Police were called to reports of multiple stabbings on board the 6.25pm train service from Doncaster to London King’s Cross. The incident occurred near Huntingdon station, around 120 kilometres north of London.

“Officers immediately attended Huntingdon station alongside paramedics,” a police spokesperson said. “Armed police from Cambridgeshire Police boarded the train and arrested two people in connection to the incident who have been taken to police custody.”

All ten victims were taken to hospital, with nine believed to have suffered life-threatening injuries. One person was being treated for non-life-threatening injuries. No fatalities have been reported.

The incident has been declared a major event, with Counter Terrorism Policing assisting the investigation.

British Prime Minister Keir Starmer said on X that his “thoughts are with all those affected” after the “appalling incident”.

Paul Bristow, the mayor of Cambridgeshire and Peterborough, said in a post on X that he had heard of reports of “horrendous scenes” on the train.

Additional reporting by 1News.