Complex sentence: On the night of uprising, Governor Takeo Yamada was informed of the burning by police telephone; he immediately rushed to the scene with a stick and confirmed the safety of the photograph of Hirohito.
Split into simpler sentences: On the night of uprising, Governor Takeo Yamada was informed of the arson by the police. He immediately rushed to the scene with a stick and confirmed the safety of the photograph of Hirohito.