Sky News:- At least 16 people were wounded – most of them schoolgirls, a city official said.
The suspect, understood to be in his 50s, allegedly carried a knife in each hand and screamed “I will kill you” before attacking the group of children waiting at a bus stop in in Kawasaki city, south of the capital, on Tuesday.
He was unconscious when he was detained and died at the scene after reportedly stabbing himself in the neck, NHK TV in Japan said.
The schoolgirls, who were aged between six and 12 years old, were students at a private Catholic school and were waiting with their parents at a bus stop at around 7.45am.
Three of those injured were said to be in a serious condition, while the injuries of the other pupils were not thought to be life-threatening.