A man armed with a knife has killed seven people and injured 11 others in central Tokyo, Japanese media say.
The incident occurred in the Akihabara district, a busy shopping area known as Electric Town that is popular with young people and tourists.
A suspect, said to be 25-year-old Tomohiro Kato, has been arrested near the scene.
The stabbing came on the anniversary of a 2001 knife attack which killed eight children at a primary school.
A police spokesman, Jiro Akaogi, confirmed Mr Kato's identity and arrest.
"The suspect told police that he came to Akihabara to kill people," Mr Akaogi told reporters.
"He said he was tired of life. He said he was sick of everything," he added.
Earlier reports suggested he could have been a gangster.
The dead include six men, ranging in age from 19 to 74, and a 21-year-old woman, Kyodo News said.
Reports say the suspec
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