In a recent update from London, British authorities have clarified that the stabbing incident on a train heading to the capital on Saturday night was not linked to terrorism. Two individuals injured in the attack are currently fighting for their lives.

According to the police, two British-born men have been detained in separate facilities on charges of attempted murder. The arrests were made promptly, within eight minutes of the first emergency call received at 7:42 p.m. from passengers aboard the train. Eyewitnesses described scenes of panic, with many passengers fleeing through the carriages and some seeking refuge in the toilets.

Superintendent John Loveless of the British Transport Police expressed his concern outside Huntingdon station, where the train was stopped soon after the incident. “This is a shocking event, and my thoughts are with the injured and their families,” he stated.

Loveless emphasized that there is no evidence to classify the incident as terrorism-related.

The two suspects remain in custody. One is a 32-year-old Black British man, and the other is a 35-year-old man of Caribbean descent. Details about their relationship and the type of weapon used in the attack have not been disclosed.

Loveless also gave an update on the wounded, reducing the number in life-threatening condition from nine to two. He said four of them were discharged and that one other person arrived at the hospital, taking the overall number treated to 11.

After its emergency stop in Huntingdon, a market town around 120 kilometers (75 miles) north of London, bloodied and confused passengers spilled out of the train. Dozens of police waited, some of them armed, and the two suspects were quickly arrested, Loveless said.

During the immediate response to the attack, police said that “Plato,” the national code word used by police and emergency services when responding to what could be a “marauding terror attack,” was initiated. That declaration was later rescinded but no motive for the attack has been disclosed.

“At this early stage it would not be appropriate to speculate on the causes of the incident,” Loveless said.

The attack took place as the 6:25 p.m. train from Doncaster in northern England to London’s King’s Cross station was about halfway through its two-hour journey, having just departed from a stop at Peterborough.

Passenger Olly Foster told the BBC he heard people shouting “run, run, there’s a guy literally stabbing everyone,” and initially thought it might have been a Halloween prank — Saturday was the day after Halloween. But as passengers pushed past him to get away, he noticed his hand was covered in blood from a chair he had leaned on.

Following reports that some of those on board the train put themselves in harm’s way to protect others, Home Secretary Shabana Mahmood praised the “exceptional bravery of staff and passengers on the train.”

King Charles III said he and his wife, Queen Camilla, sent their sympathies and thoughts to those affected and that they were “truly appalled and shocked to hear of the dreadful knife attack.”

London North Eastern Railway, or LNER, which operates the East Coast Mainline services in the U.K., confirmed the incident had happened on one of its trains and said there would be major disruption on the route until Monday.

British Transport Police’s Loveless said passengers will see a “high visibility presence of police officers at stations and on trains” on Sunday.