A month after the disaster, hope for the trapped miners is fading.
The effort is moving slowly, according to rescuers, because they have to pump out 2.5 million liters of water for every meter down. Their machinery is also becoming blocked.
Boakyewaa Lawrencia 
It's been a month since a flood trapped eight workers at the Perkoa mine in Burkina Faso more than 700 meters down.
Rescuers are pushing water to the surface in the hopes of finding them alive in a refuge chamber.
However, as time passes, hope fades.
Six Burkinabès, one Tanzanian, and one Zambian are among the trapped men.
Rescuers were 3.5 meters away from where the miners are suspected to be hiding on Sunday.
The effort is moving slowly, according to rescuers, because they have to pump out 2.5 million liters of water for every meter down. Their machinery is also becoming blocked.
To work faster, the rescue team has received fresh pumps and equipment from South Africa and Ghana, and it is considering sending divers today.
However, the divers may have difficulty seeing through the dirty, possibly filthy water.
Families hold out hope that their loved ones are still alive, and the government claims that the shelter's ventilation system is still operational.
