A possibly mentally ill man is said to have stung at the weekend, four people in the North of London. All the victims were travelling alone and were attacked without warning from behind. The police believe that the crimes are related and arrested on Sunday a Suspect.
"There is nothing suggesting a terrorist attack," police said. All the victims were hospitalized; some of them had suffered very serious injuries. The series of attacks began on Saturday evening, the last attack took place Sunday morning. The police also called on witnesses to report immediately. (dpa)