Suspects 'do not know' anything about the matter, police said
TokyoReporter
Driver told police that the fire started in the engine area of the vehicle after he pulled over to let another car pass
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Victim suffered injuries that are not considered life-threatening, police said
Police believe that the person died in a hiking accident
Male victim is in serious condition, police said
Suspect told police, 'I strangled her with a rope'
Suspect reportedly threatened via telephone, 'I will carry out a Kyoto Animation-type attack in which I ignite gasoline,'
Vice chief of the Hakata Police Station said, 'With this being an unfortunate incident, we are investigating the details'
Suspect used a motorcycle to approach victims from behind, police said