A medical assessment of the 12 boys and their football coach stuck in a cave in Northern Thailand has concluded that it is too dangerous to try to move the group out Thursday, says a member of the Thai Navy Seals who spoke to the media on the condition of anonymity.

The Seals have also started to pump oxygen into the chamber.

In addition, a new doctor’s report highlighted that two of the boys and their coach were suffering with exhaustion from malnutrition.

As at Thursday, fresh details of the undergoing operation at the Tham Luang Nang Non to free the team were emerging, as rescuers pushed ahead with multiple plans to extricate the group trapped underground for almost two weeks.

With heavy rain forecasted for this weekend, rescuers are under pressure to formulate a plan to extract the boys before flood waters rise any higher.

Although huge volumes of water are being pumped out of the cave complex each day, yet the narrow, winding passages inside are still flooded, meaning diving through the murky water is currently the only way in and out.

Rescuers entering the cave complex have to navigate the dark, flooded tunnels for six hours to reach the team. It takes another five hours to return to the entrance.