Rescuers in Thailand have reportedly retrieved four more boys trapped in a cave on Monday, bringing the total number of those rescued to eight, while their soccer teammates and coach still remain.

The rescue mission receiving international attention and support to retrieve 12 boys and their soccer coach began on Sunday, using a team of 90 divers — 40 from Thailand and 50 from overseas.

A witness on the scene of the Tham Luang cave claimed to have seen medical personnel carrying two more people to ambulances on Monday evening, according to Reuters.

A source at the camp now tells BBC that another boy has been saved, meaning four boys and their soccer coach still remain trapped.

Four boys were also rescued on Sunday. (RELATED: At Least Four Boys Have Been Rescued After Being Trapped In Thailand Cave, Local Official Says)

The mission has been temporarily paused overnight as the team replenishes the oxygen air tanks.

Chief of the rescue mission, Narongsak Osottanakorn, declined to release the identities of the boys, reportedly out of respect for the families whose sons are still trapped. He also says a news conference will be held soon.

The “Wild Boars” soccer team and their coach got trapped on June 23 when heavy rains flooded the tunnels in a cave the boys were exploring after practice.

The team of boys, ages 11 to 16, are trapped in a cave located in the northern part of Thailand in the Chiang Rai province.

British divers found the group on a partly flooded bank several miles inside the cave on July 2, nearly nine days after they went missing.

Authorities involved in the mission say it could take up to four days to retrieve every person, as the combination between lowering levels of oxygen and heavy rains expected within the next few days could potentially disrupt the mission.

Divers from several different nations as well as members of Thailand’s Navy SEAL team make up the rescue unit making the trek in and out of the treacherous cave that took the life of a former Thai Navy SEAL, Saman Kunan, on Friday.

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