Four people were killed and 27 missing in a mountain flood in Datong county in Northwest China's Qinghai province on Thursday morning, according to the province's bureau of emergency management.
The bureau received a report on the disaster from Xining city, which administers the county, at around 7 am.
The province promptly launched a provincial level-II emergency response for control and rescue work. Level-II is the second most severe response in a four-tier disaster control emergency response system.
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