Number of rescuers in cave to be reduced

Phayao Governor Narongsak Osotanakorn told a press conference that excess staff had been withdrawn from inside the cave, leaving only necessary officials.
He said officials also tried to pump air into the cave to ensure that there would be enough oxygen for the rescuers and the trapped footballers.
He said the dwindling oxygen level, and increase in carbon dioxide from human exhalation, could be fatal to both rescuers and the trapped youths so the number of rescuers would have to be balanced.