Nine people have reportedly been pulled alive from a flooded mine in China after being trapped for a week.
Officials say the water level underground has dropped by about five metres making it now possible for divers to enter to rescue more than 140 other workers.
But their condition remains unknown.
No further signs of life have been detected since tapping was heard on Friday.
Work to reach the remaining miners could last days and their survival also depends on them receiving clean air to breathe and water to drink.
The accident occcured when workers digging tunnels broke into an abandoned shaft.