LONDON – Following a violent incident on a train headed to London, British authorities reported that 10 individuals have been hospitalized, with nine facing critical injuries. The investigation, now receiving assistance from counter-terrorism units, unfolded on Saturday evening.

Early Sunday, British Transport Police, responsible for railway security, announced the arrest of two suspects linked to the stabbing spree.

The official statement highlighted that, “Ten individuals have been transported to medical facilities, with nine sustaining injuries considered life-threatening. This situation has been classified as a major incident, and Counter Terrorism Policing is aiding our efforts to determine the complete context and motive behind this event.”

The authorities also noted the activation of “Plato,” a national alert used during potential “marauding terror attacks,” which was subsequently withdrawn. However, the motive remains undisclosed.

Chief Superintendent Chris Casey remarked, “We are conducting urgent investigations to uncover the details, and it might take time before we can provide further information. At this preliminary stage, speculating on the incident’s causes would be inappropriate.”

The attack took place as the Doncaster to London King’s Cross train headed south toward Huntingdon, a market town a few miles northwest of the university city of Cambridge.

Emergency services, including armed police and air ambulances, responded quickly as the train drew into Huntingdon. The attack appears to have been contained swiftly after the train arrived at the station, and police officers wearing forensic suits, with a police dog, could be seen on the platform.

Cambridgeshire Constabulary, the local police force, said armed police attended the incident after officers were called to the scene at Huntingdon station at 7:39 p.m. on Saturday. It added that the two people were arrested at the station, which is around 75 miles (120 kilometers) north of London.

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

Paul Bristow, the mayor of Cambridgeshire and Peterborough, said he had heard of “horrendous scenes” on the train.

London North Eastern Railway, or LNER, which operates the East Coast Mainline services in the U.K., confirmed the incident had happened on one of its trains and urged passengers not to travel because of “major disruption.”