Wren Chambers told BBC she thought the attack was a ‘halloween prank’ at first – until she saw people running through the carriages.
She said: ‘There was a girl next to me who was near where the first stabbings happened.
‘She said the man on the floor stepped in front of her and then got stabbed in the neck.’
But police have now said there is ‘nothing to suggest’ the stabbing was terror related.
Chief Superintendent Chris Casey of British Transport Police said: ‘This is a shocking incident and first and foremost my thoughts are with those who have been injured this evening and their families.
Objects lie scattered on the ground at Huntingdon Station (Picture: Reuters)
‘We’re conducting urgent enquiries to establish what has happened,and it could take some time before we are in a position to confirm anything further.
‘At this early stage,it would not be appropriate to speculate on the causes of the incident.
‘Our response is ongoing at the station and will be for some time.’
A statement on the London North Eastern Railway (LNER) website states that disruption between London Kings Cross and Peterborough is expected until the end of Monday with Huntingdon station remaining closed until at least then.
It says: ‘The emergency services are continuing to deal with a major incident between Hitchin and Peterborough. Whilst they carry out their work some lines are still closed.
‘Great Northern and Thameslink services will not call at Huntingdon.
‘LNER services between London Kings Cross and Peterborough may be cancelled,revised or delayed.
‘Disruption is expected until the end of the day on Monday 3 November.’
The National Rail website says that lines affected by the disruption are the Great Northern between London Kings Cross and Peterborough,LNER between London Kings Cross and Lincoln,Doncaster,Leeds,Bradford Forster Square and Harrogate,and Thameslink between London Kings Cross,Welwyn Garden City,Hitchin and Peterborough.
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