<span style="color: #222222;">In China, at least seven workers were killed and three others injured in an accident at a coal mine in southwestern part of the country.<br />''</span><br />'' <span style="color: #222222;">State-run Xinhua news agency said, the accident took place yesterday when the connecting segment of a mining skip broke, causing it to slide down the inclined shaft.<br />''</span><br />'' <span style="color: #222222;">In October, 8 miners were killed after a rock burst ripped through a coal mine in Yuncheng county of Shangdong province. </span><br />'' <br />