Senior Thai government officials warned Wednesday that time is running out to rescue teenage boys and their soccer coach, believed trapped in a flooded cave complex in northern Thailand for days, and that the search to find other entry points into the cave system has taken on a new urgency.
26We will try to find other ways apart from underwater rescue because the clock is ticking
Heavy rainfall has caused water levels to rise faster than it can be drained by pumps, frustrating the efforts of hundreds of rescue workers.
There has been no contact with the group since Saturday.
On Tuesday, navy divers reported seeing fresh footprints inside the cave complex, raising hopes for the group's safety.
But despite the use of powerful industrial water pumps, water levels rose even higher overnight, flooding another chamber of the cave complex.
Search and rescue teams, cut off from the area they believe the missing boys might be, are searching the hilltops for a chimney or alternative way in.