Local traffic police said anti-terrorism forces are supporting the investigation to fully determine the circumstances and motive of the incident.
We are urgently investigating what happened, and it could take some time before we can announce more information, said Chris Casey, Director of the UK Traffic Police.
Chris case noted that this stage is not suitable for speculation about the cause.
Meanwhile, Cambridgeshire Police said they received the report at three o'clock (local time) on November 1, after reports of many people being stabbed on a train departing at seven and a half minutes (local time) from Doncaster to King's Cross Station in London.
The ship stopped in the town of Huntingdon, armed police were seen boarding the ship in videos circulating on social media.
armed police arrived at the scene, the boat stopped at Huntingdon and the two men were arrested, the police said in a statement.
In an interview with local media, a witness said that one of the two suspects - the one holding a large knife - was controlled by the police with an electric gun.
The UK Eastern Emergency Service has deployed a large-scale force to Huntingdon train station, including several ambulances, an emergency team and three medical helicopters.
In a post on X later, British Prime Minister Keir Starmer expressed concern, and described the incident as horrific.
I would like to express my condolences to all those affected, and thank the rescue forces for their quick response, Prime Minister Starmer wrote.
