Overview
- Police released one of two men initially arrested and said they are not seeking additional suspects.
- Eleven people were taken to hospital, five have been discharged, and a railway staff member remains in critical condition.
- The train from Doncaster to London made an emergency stop at Huntingdon, where armed officers boarded and detained the suspect after a taser was used.
- Officers recovered a knife from the carriage and said the suspect boarded one stop earlier at Peterborough.
- Detectives are questioning the British suspect and working to establish a motive, while the prime minister voiced concern and praised emergency responders.