The train derailed near Kiyotaki (an area between present-day Saga Arashiyama Station and Hozukyo Station where the Sagano Sight-seeing Tram Line, which is operated by the Sagano Scenic Railway, runs), and Gentaro was reportedly involved in the accident, dying in the train which fell into the Katsura-gawa river (Yodo-gawa river system).
清滝付近（現在の嵯峨嵐山駅・保津峡駅間付近、今はトロッコ列車（嵯峨野観光鉄道・嵯峨野観光鉄道嵯峨野観光線）の線路となっている）で起きた脱線事故に巻き込まれ、列車もろとも桂川(淀川水系)へ転落して亡くなったとされている。