Excavators have been removing debris since Sunday morning from the site in the Himalayan state of Uttarakhand to create an escape tunnel for the workers, all of whom are still alive.
Officials have "contacted the Thai company which rescued the children trapped in the cave", the state government's department of public relations said in a statement.
The statement was referring to the dramatic operation to rescue 12 boys from a junior football team and their coach, who were trapped for more than two weeks in the Tham Luang cave complex.
The authorities have also asked for help from engineering experts in soil and rock mechanics at the Norwegian Geotechnical Institute as frantic efforts to free the men stretched into a fourth day.
Rescue workers renewed efforts on Thursday to reach the 40 men trapped inside the tunnel for the fifth day, making slow progress as they began drilling through rock and soil debris.
The authorities said they were confident an advanced drilling machine flown in from New Delhi will speed up the rescue.
Diese Geschichte stammt aus der November 17, 2023-Ausgabe von The Straits Times.
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Diese Geschichte stammt aus der November 17, 2023-Ausgabe von The Straits Times.
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