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Photo taken on Oct. 21, 2018 shows the Longyun coal mine, the site of a rock burst accident where 22 workers were trapped, in Yuncheng County, east China's Shandong Province. The burst happened Saturday night. Ventilation in the coal mine has recovered and rescue work was under way. (photo taken with a cellphone) (Xinhua)
JINAN, Oct. 21 (Xinhua) -- Twenty-two workers were trapped after a rock burst occured at a coal mine in east China's Shandong Province Saturday night.
The burst happened at around 11:00 pm in a coal mine in Yuncheng County, according to local authorities.
Ventilation in the coal mine has recovered and rescue work is under way.
