LONDON (AP) — U.K. police on Monday charged a 32-year-old man with attempted murder over a mass stabbing attack on a train that wounded 11 people, and said he also tried to kill someone at a London transit station earlier the same day.

British Transport Police said Anthony Williams is charged with 10 counts of attempted murder, one of actual bodily harm and one of possession of a bladed article over the attack on Saturday.

Police said he is also charged with attempted murder over an earlier incident at Pontoon Dock light rail station in London just before 1 a.m. on Saturday, in which a victim “suffered facial injuries after being attacked with a knife” by an assailant who fled the scene.

Police said investigators are also “looking at other possible linked offenses.”

Police say they are not treating the train stabbings as an act of terror and are not looking for other suspects. A second man initially arrested as a suspect was released without charge on Sunday after it was determined the 35-year-old was not involved.

Williams, a British citizen from the city of Peterborough in eastern England, is due to appear in court later Monday.

The minutes-long stabbing spree spread fear and panic through a train bound from Doncaster in northern England to London on Saturday evening. The train was about halfway through its journey and had just departed from a stop at Peterborough when police began receiving calls about people being stabbed onboard.

Passengers described scenes of panic as bloodied travelers raced down the train to get away from the knifeman. The most seriously wounded victim is a member of railway staff who tried to stop the attacker. Police called his actions “ nothing short of heroic.”

He is hospitalized in a critical but stable condition.

Williams was arrested when the train made an emergency stop in the town of Huntingdon in eastern England. Police say he was detained within eight minutes of officers receiving the first emergency calls.

Authorities said the attack was an insolated incident but stepped up security on the railway, with armed police officers on patrol Monday at major train stations.