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.

Police have released one of the two men who were arrested over yesterday's mass stabbings on a train heading from Doncaster to London.

"Detectives have reviewed the CCTV from the train and it is clear his actions were nothing short of heroic and undoubtedly saved many people's lives," British Transport Police say of the injured empl...