A violent stabbing spree aboard a London-bound train on Saturday evening has left nine passengers in critical condition and prompted a major emergency response, including counter-terrorism involvement.

The incident occurred on the 6:25 p.m. LNER service from Doncaster to King’s Cross, which was forced to make an emergency stop at Huntingdon station following reports of multiple knife attacks.

British Transport Police (BTP) confirmed that two male suspects were arrested at the scene, where armed officers deployed tasers to subdue one individual reportedly wielding a large blade. Initial fears of a marauding terror attack led to the brief invocation of a “Plato” code—used for mass casualty incidents—though authorities later downgraded the classification pending further investigation.

Chief Superintendent Chris Casey of BTP stated that ten people were injured in total, nine of whom sustained life-threatening wounds. “We’re conducting urgent enquiries to determine the motive and circumstances. It could take time to confirm more,” Casey said, urging restraint on speculation.

The attack unfolded just minutes after the train departed Peterborough, with passengers describing scenes of “pure chaos.” Witnesses reported bloodied victims running through carriages, others collapsing, and many hiding in toilets as panic spread. Emergency services, including two air ambulances and hazardous response teams, treated victims on-site before transferring them to nearby hospitals.

East of England Ambulance Service coordinated a large-scale medical response, while Huntingdon MP Ben Obese-Jecty praised the “staggering” speed and effectiveness of the operation, noting the proximity to a major police hub. Prime Minister Keir Starmer called the incident “deeply concerning” and commended emergency responders for their swift action. Home Secretary Shabana Mahmood urged the public to avoid speculation, while Shadow Home Secretary Chris Philp described the event as a “brutal mass attack” and called for rapid updates on the investigation.

Train operator LNER issued a “Do Not Travel” advisory, temporarily closing Huntingdon station and suspending services on affected lines. Stranded passengers were rerouted to London via coach.

The incident has reignited concerns over rail security and knife crime in the UK, drawing comparisons to the 2023 Nottingham stabbings. Forensic teams remain on site, and no group has claimed responsibility.