Overview

• The tunnel collapse occurred during construction of the Thailand-China high-speed railway project.
• Three workers, two from China and one from Myanmar, were trapped and later found dead due to suffocation.
• Rescue teams from Thailand and China worked tirelessly but were hindered by unstable conditions.
• Initial investigations suggest the collapse was caused by heavy rains making the earth above the tunnel unstable.
• Thai authorities have suspended construction and launched an investigation into the incident.