This happened on Chuo Dori, the main road that runs through the famed electronics district. On Sundays, if rain is not predicted for the afternoon, Chuo Dori is blocked off to automobile traffic for about a six-block stretch so people are walking down the middle of the road.

One witness described how he leapt out of the cab and stabbed a man he had already driven into several times. He then went after others in the crowd.

Grainy mobile phone camera footage captured seconds later shows the desperate efforts by passers-by to tend to those injured.

Half an hour after the attack medical staff were still trying to treat those injured in the middle of the road.

Behind hastily erected green tarpaulins, paramedics tried desperately to revive those who had been attacked.

Towels and umbrellas were scattered around where they had been dropped in the chaos.

Here is a link to the English language BBC report, news...

If you understand Japanese, here is a youtube of a news report...