BBCTwo people have been arrested after "multiple people" were stabbed on a train.
British Transport Police are currently responding to the incident after an LNER train was stopped in Huntingdon, Cambridgeshire.
Armed officers attended the scene and two men were arrested following 999 calls at 19.39 GMT.
More than 30 officers were sent to the scene . No details about how many people have been stabbed have been released, or how serious the injuries are.
A Cambridgeshire Police spokesperson said:"Two men have been arrested by police this evening after more than 30 officers were called to Huntingdon Train Station.
"We were called at 7.39pm with reports that multiple people had been stabbed on a train.
"The incident remains ongoing and the A1307 has been closed as you approach the town centre."
Videos posted to social media showed armed officers running along the platform as well as a large police presence outside the station area.
The LNER website confirmed"emergency services are dealing with an incident between Stevenage and Peterborough".
All lines are currently closed while the incident is dealt with.
"Trains running between these stations may be delayed by up to 60 minutes or revised.
"Major disruption is expected until the end of the day", the statement said.
Huntingdon MP Ben Obese-Jecty posted on X:"I am aware of the incident and am trying to establish further information.
"My thoughts are with the victims and those involved."
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