A police force said it was reviewing whether three incidents involving a man carrying a knife were related to a stabbing attack on a train. Passengers said a man brandishing a knife began stabbing people on the London-bound LNER train after it passed through Peterborough at about 19:30 GMT on Saturday.

British Transport Police have confirmed that multiple people have been stabbed on a train heading to Huntingdon, Cambridgeshire, on Saturday evening

Cambridgeshire Constabulary has voluntarily referred itself to the police watchdog following the stabbing of a 14-year-old in Peterborough

The stabbing of a 14-year-old boy and two reports of a knifeman seen at a barber’s in Peterborough are being investigated as part of the police probe into a mass stabbing on a high-speed train in Cambridgeshire.

There aren't any known victims or concerns about public safety risk at this time, a spokesman for Cambridge police said. The post Updated: Cambridge police seeking person of interest after shooting prompts brief shelter-in-place order at Harvard appeared first on Boston.