article_snippet.sent: The search operation to find survivors is still continuing .
article_snippet.sent: Rescue efforts are still ongoing to track down survivors from the quake .
article_snippet.sent: Since Saturday, rescuers, some wearing face masks to keep out the dust, have been scrambling over mounds of splintered timber and broken bricks in the hope of finding survivors.
article_snippet.sent: A desperate helicopter rescue mission was under way today, with one British mountaineer there speaking of a 'race against time' to pluck around 120 people to safety as food runs out.