At least 31 miners were killed and 78 remain trapped 500 meters under ground following a gas blast at a mine in China,state media said on Saturay. DPA quoted the official Xinhua news agency as saying, the ripped through the mine arround 02 : 30 on Saturday morning when there were 528 peopleat work, but 419 got out safely. The Xinging mine lies near the border with Russia. Rescue team are already on the site, with 60 people hunting for the missing miners, Xinha said. More than 3000 people died in mines, explosions, collapesand other accidents in 2008 alone.