Another two people are still missing.Evacuations of the four known survivors were suspended until today because they were not ready, said Chakkit Taengtang of Sai Than Association, one of the Thai rescue organisation at the scene.Josh Richards, an Australian diver who joined the rescue efforts on Friday, told the ABC the operation was "incredibly challenging" because of the claustrophobic conditions.Rescue teams had pumped water out of the flooded cave's passages yesterday, but a morning rainstorm complicated their work. The trapped men have already been supplied with water, soft food, and foil blankets to keep them warm And all of a sudden the floodwaters have come straight up."One other villager escaped in time and alerted the authorities to the seven left behind.A video shot inside the cave on Thursday vividly illustrated the desperation the trapped men were feeling.Thai rescue diver Norrased Palasing spoke with a trapped villager named Khamla, who urged the divers to let the group attempt to swim out immediately.Mr Palasing sought to reassure him, telling him that the water was being drained, and handing over blankets and food