A recap on the past six hourspublished at 01:29 GMT
01:29 GMT
For those who are just joining us, it’s been almost six hours since police first received reports of multiple stabbings aboard the 18:25 service from Doncaster to King’s Cross.
After receiving that call at 19:42, a large number of emergency responders attended the scene at Huntingdon Station in Cambridgeshire, where the train made an unscheduled stop.
Police have since confirmed that there were no fatalities, but nine people are in hospital with life-threatening injuries. A tenth person is being treated in hospital with non life-threatening injuries.
Two people have been arrested in connection with the incident, and are currently in police custody.
The investigation is being supported by counter-terrorism officers, and police say that trains are still not running in the area. There are also a number of road closures that remain in place.
What we don’t know:
Victims of the attack have still not been identified, which is likely in part due to police making sure their families have been informed
The identities of the two people who were arrested in connection with the attack have also not been released
Stay with us as we bring you the latest updates, as the situation continues to unfold.