Twenty miners at this Chinese coal mine have been confirmed dead after an accident early on Tuesday.<br/> <br />Authorities say the miners were killed when a cart lifting them to ground level slipped in a pit.<br/> <br />34 miners were in the two-cart carriage.<br/> <br />Authorities said the carriage was designed to carry just 10 passengers.<br/> <br />Of the 14 injured, three received serious injuries.<br/> <br />China has the world's deadliest coal-mining industry.<br/> <br />Safety improvements have reduced the number of deaths in recent years, but safety rules are often ignored.
