A Chinese man who carried out a knife attack in eastern China last June that wounded a Japanese woman and her child and killed a bus attendant trying to protect them has been sentenced to death, according to a Japanese official.

A Chinese court sentenced a man to death on Friday for fatally stabbing a 10-year-old Japanese boy in Shenzhen last September, Japan's government said, a day after another court handed down the same penalty in a separate knife attack involving Japanese citizens.