Tham Luang caves, Thailand (CNN)- Rescuers working at a cave site in northern Thailand have suspended operations for the day after bringing four more boys out of the flooded cave system Monday, according to a witness working with the rescue team, bringing the total number of rescued boys to eight.
Four more boys were brought out Monday from the flooded cave in Chiang Rai after four others were rescued on Sunday.
The second shift of the rescue effort to evacuate the trapped soccer team saw a team of 18 Thai and worldwide divers guide four boys about 2 1/2 miles (4 kilometres) to the cave's entrance using a 3-mile (4.8 kilometre) rope on Monday.
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. A health official said Tuesday that all eight boys are in "high spirits".
Narongsak said, "We expect that if there is no unusual condition. the 4 boys, 1 coach, the doctor, and 3 SEALs who have been with the boys since first day will come out today".
The ambulance left the cave complex area hours after the start of the second phase of an operation to rescue a youth soccer team trapped inside the cave for more than two weeks.
Two of the first boys had mild lung infections which could be pneumonia but, he said, most of the boys were "fine, normal" and had undergone a battery of tests, X-rays, and received vaccinations.
The rescue missions take almost half a day to complete. However, scattered monsoon rains continued to risk percolating through the limestone cave walls to flood the tunnels with water.
The billionaire Tesla chief has visited the Tham Luang cave to drop off a miniature submarine he hoped might help with the ongoing rescue operation of the Wild Boar soccer team.
Monday's operation began at 11 a.m. and took nine hours, two fewer than Sunday, with rescuers helped by the experience they have accumulated, Narongsak told a news conference punctuated with rounds of applause.
Four boys and the coach are still trapped.
The rescued boys will be in quarantine for at least 24 hours, Tracy reports.
Writing in elegant Thai script, the boys urged their parents not to worry, adding that they hoped they wouldn't get too much homework after being rescued and couldn't wait to eat their favorite foods again.
Finally, a miracle: the 12 boys and their coach are found alive late Monday evening about 400 metres beyond Pattaya Beach by the British cave diving team.
Other divers were on guard along the risky first kilometer of the passageway. "We will check later today whether their eyes have adjusted to light", said Dr Jesada.
Four were rescued Sunday and another four were rescued on Monday.
Authorities say expected rains may force a complex rescue quicker than first thought.