Rescue operations have halted for the night and will restart on Tuesday. The media greeted the news with cheers. "But if the rain god doesn't help, then it could be challenging", Narongsak said.
The divers told CNN that they can't wait for the moment when they know all of the boys are out. Four children were freed that first day and transported to an area hospital.
Rescue operations chief Narongsak Osottanakorn says the boys are not ready to dive to safety.
The boys were exploring the caves on June 23 with their coach when they were trapped inside by heavy seasonal rains.
The second group of four rescued on Monday are aged 12 to 14. After they were found on July 2, officials cautioned it could take some time to get them out, but with heavy rain forecast to hit the region authorities chose to act.
A team of 90 expert divers - 40 from Thailand and 50 from overseas - has been working in the cave system.
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'The road ahead will be hard and challenging and we know critics will try to minimize what we have achieved, ' he said . But after two days of theatrical amity in Pyongyang it illustrated the gulf that remains between the two sides.
For the five still stranded, it's been 17 days since they've been outside.
Musk, who has previously used high-profile events to win contracts for his companies, sent a team of engineers to Thailand last week to see if they could be of service.
The death of a former Thai Navy SEAL diver who ran out of oxygen in the cave on Friday underscored the danger of the journey even for professionals.
The members of the "Wild Boars" team, aged between 12 and 16, were guided to safety through the twisting, submerged passages of the Tham Luang cave by a team of worldwide expert divers flanked by Thai Navy SEALs over two days in a meticulously planned operation. "His determination and good intention will always be in the heart of all SEAL brothers".
Since it is rainy season, you can expect nearly everyday you will get some type of rain.
"This is the hardest mission we've ever done". Musk shared photographs on Twitter Tuesday morning that appeared to show him visiting the cave site.
American billionaire entrepreneur Elon Musk tweeted Monday that he had visited the cave and left behind a mini-sub rescue vehicle "in case it may be useful in the future".
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The South Korean embassy in Tehran on Saturday denied that the country has stopped oil imports from Iran , IRAN Daily reported . USA markets also garnered support from a government employment report showing better-than-expected growth in jobs.
"All conditions are still as good as they were yesterday", Narongsak told a news conference.
Two of the boys possibly have a lung infection but all eight are generally "healthy and smiling", he said.
Their families were being kept at a distance because of fears of infection and the emaciated-looking boys were eating a rice-based porridge because they were still too weak to take regular food, authorities said. "We've started giving them "medical food" this morning".
Doctors expect them to remain in the hospital for at least a week.
Fifa's president invited the team to fly to Russian Federation to watch the World Cup final, which is scheduled to take place on Sunday.
It could be at least seven days before they can be released from hospital, Jesada said.
"It is hoped they will have the success than they did year", he said.
Rescuers have freed four boys trapped in Thai cave
So far eight boys aged between 12 and 16 have been led out of the cave system by a team of expert divers over two days. The first day we spent 11 hours, yesterday we spent nine hours [from the start of the mission to the final rescue].