Forty-three people were killed and 28 injured early on Friday in an explosive blast in north China's Shanxi province.
The explosion took place at around 6.30 am in a villager's home in Dongzhai village of the province's Ningwu county, said a police official.
Zhang Baoshun, secretary of the Shanxi provincial committee of the Communist Party of China (CPC), demanded that all-out efforts be made to rescue the injured, and responsible persons be punished according to law.
Party and government authorities of Ningwu have rushed to the spot to oversee the rescue work.
The cause of the explosion is under investigation.
Ningwu county was witness to a fatal blast on July 2 last year when a gas explosion at the Jiajiabao coal mine killed 36 people and injured 11.
The mine's owner hid the bodies of 17 dead miners after the explosion to evade punishment.
With vast coal reserves, Shanxi province, commonly known as the "sea of coal, is the biggest coal producer in China.
However, legions of fatal accidents occur in the province each year, and tragedies caused by illegal storage of explosives used for mining.
In June this year, 10 people were killed when privately stored explosives went off in a residential building in Fanshi county of the province.