Rescue workers pull two injured miners from a collapsed mine in northern China in the early hours of Sunday morning.<br/> A total of seven survivors have been rescued so far - but one man remains trapped underground, and four others have been killed.<br/> Thirteen miners were inside the pit at the coal mine in Inner Mongolia when it caved in on Friday.<br/> Survivors have been transported to a local hospital.<br/> (SOUNDBITE) VICE PRESIDENT OF HUADE COUNTY HOSPITAL, LI YOU, SAYING (Mandarin) :<br/> "They are in stable condition, with sustained minor fractures that are not life threatening."<br/> The collapse is the latest in a series of mine accidents in China - which has the world's deadliest mines -- mostly due to lax safety standards.<br/> Official reports say 2,433 people were killed in coal mine accidents in 2010 alone - an improvement to the previous year's 2,631.<br/> Travis Brecher, Reuters