Tokyo: A Japanese man armed with a knife stormed aboard two buses and wounded 13 people, mostly schoolchildren, outside a train station northeast of Tokyo on Friday, police and media reports said.
Police said they had arrested a 27-year-old unemployed man identified as Yuta Saito after the attacks in Toride city, Ibaraki prefecture.
"The suspect got onto the buses and wielded a knife and slashed passengers in there," said a police spokesman at Toride.
"The incident occurred on a school bus and then on another bus for ordinary citizens that were both parked in front of the station."
"We can say at this moment that at least 13 people were wounded."
Witnesses to the morning rush-hour attacks subdued the knifeman, who also sustained some injuries.
A fire department official said: "Thirteen people were wounded. No one is dead."
Jiji Press news agency said a 49-year-old woman and 11 junior high and high school students were among the injured, though all remained conscious.