XIAMEN - A man who allegedly set fire on a crowded bus to "vent personal grievances" in eastern China's Xiamen city on Friday evening died in the blaze, the Xiamen city government said Saturday.

Chen Shuizong, born in 1954 and a native of Xiamen, was identified as the arsonist of the fire, which claimed 47 lives and hospitalized 34 others, the information office of the city government said in a statement.

The statement said that an investigation and DNA evidence found that Chen was the suspect.

Xiamen police found notes in the suspect's house, which showed that Chen was unhappy and pessimistic about his life, and planned the arson to vent personal grievances.