Inner Mongolia: At least 20 people were killed on Saturday and 30 injured in a bus accident blamed on faulty brakes at a mine in northern China, state media reported.
The accident occurred at a lead, zinc and silver mine operated by the Yinman Mining Co in the sprawling inner Mongolia region, a news agency said.
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The casualties occurred when a bus carrying 50 miners to the underground operation went out of control and crashed into the side of the tunnel, news agency said.
The Ministry of Emergency Management has sent a working team to "guide and assist" in the rescue and investigation at the accident site, the report said.
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Despite huge safety improvements in recent years, scores of Chinese miners die each year, largely in gas explosions, underground floods and collapses due to structural defects.