Ambulances have arrived at the Thailand cave site where rescue teams have been making preparations to save 12 trapped boys and their soccer coach amid reports the rescue could be underway — or at least imminent.
Speaking over a loudspeaker, Thai authorities on Sunday ordered an evacuation of the area around the Tham Luang cave complex so that a “rescue operation” could take place.
“Assessing the situation now, it is necessary to evacuate the area for the rescue operation,” Mae Sai police commander Komsan Sa-ardluan said.
“Those unrelated to the rescue operation, please evacuate the area immediately.”
Speaking to ABC News, our correspondent Anne Barker said, “It’s very clear that if the rescue hasn’t begun already, that it will be imminent.”
The announcement from Thai authorities came early on Sunday as dark monsoon rainclouds loomed over the mountainous north of the country.
Media have also been blocked from entering the cave and moved about 500 metres away from the operations centre.
A heavy rain shower hit northern Thailand overnight, worsening conditions at the cave where rescuers were waging a “war with water and time”.
Concerns have been mounting that rain could potentially set back the progress made over the last week to drain the cave complex in the northern province of Chiang Rai.
Time running out on rescue
With oxygen levels dropping and rainstorms forecast, time is running out on a plan to teach the boys — some as young as 11 and not strong swimmers — to make a dive through narrow, waterlogged passageways that would challenge experienced cavers.
Earlier the leader of the rescue effort said the best window for a rescue could come in the next three or four days.
Narongsak Osottanakorn’s cautious message of hope came a day after the death of a Thai rescue diver, a grim turn in what began two weeks ago as an adventure to celebrate the birthday of one of the boys.
Up on the hill, where rescuers are seeking alternative routes down into the cave, another accident occurred on Saturday night: a vehicle skidded off a dirt track, seriously injuring the driver and a passenger and harming four other volunteers, authorities said.
Earlier, at the sprawling cave mouth below, lines of frogmen and soldiers with flashlights could be seen emerging from the darkness, as generators chugged and pumped water out from blue nylon pipes.
Dozens of Royal Thai Army soldiers rested on rocks outside the cave, with two of them saying they had been told by superiors that the rescue operation would likely begin Sunday or the day after.
Authorities tightened a security cordon, draping plastic sheets around the approach to the cave, further giving the sense that a rescue might be imminent.
Mr Narongsak, a former provincial governor, told reporters conditions were currently “perfect” and the next three to four days was “the best and most ideal time for the rescue operation.”
“The current situation, with the air and water levels and the boys’ health, is the best yet,” he added.
“We’re still at war with water and time.”
The discovery of the boys inside the cave by British divers on Monday “was just a small victory”, he said.
For the first time since they were found, the boys communicated by letter with their relatives — many camped outside the cave’s entrance. The boys wrote with both homesickness and humour.
The parents have also had short letters delivered to the boys by divers.
Many parents made it clear they are not angry at their sons for going into the cave. Nor do they blame the boys’ coach, Ekapol Chatarawong, 25, for putting their children in danger.
Billionaire entrepreneur Elon Musk tweeted on Saturday that an escape pod and inflatable tube he was developing might be used to help the rescue. He gave no details.
The Thai defence ministry said a team from a Musk firm with drilling and exploration knowhow should reach the cave on Sunday.
Several monks in orange robes sat at a small shrine with two golden deer statues near the cave mouth, chanting, as a middle-aged woman knelt and prayed before them.
An assistant said the ceremony was to “open up” the cave mouth to allow for an easy and safe return for the boys.
Thai rescue teams arrange a water pumping system at the cave’s entrance. (AP: Royal Thai Navy)
Diver ‘double positive’ about rescue mission
Ivan Katadzic, a Danish diving instructor who has been ferrying oxygen tanks into the cave, said after a dive on Friday he was “double positive” about the mission because the water level had dropped considerably.
Katadzic has not dived the final kilometre to where the boys are stranded on a muddy bank, the most dangerous part of the dive, during which rescuers have to hold their oxygen tanks in front of them to squeeze through submerged holes.
Alternative rescue plans include stocking the cave with supplies and an oxygen line to keep the boys alive for months until Thailand’s monsoon season ends, or drilling a shaft down from the forest above.
Mr Narongsak said the drills would have to pierce 600 metres of fragile limestone rock to reach the boys and rescuers were discussing drilling angles.
Besides looking for possible holes from above, the team on the hill above is trying to block holes and divert streams that channel water into the cave before the weather turns.
“Everything is a race against time,” said Kamolchai Kotcha, an official of the forest park where the cave complex is located.
His team would camp out on the hill to try and finish its work before the rain came, he said.