Amazing Rescue: 12 workers trapped in collapsed tunnel for 63 hours

After 63 long hours, 12 workers who got trapped in a collapsed tunnel in northeast China have been rescued.

After more than 80 hours of hard work, the rescuers finally broke through a channel and got them to safety.

All the 12 workers were conscious while they were carried out of the tunnel, and some of them could even walk out by themselves. They were taken to hospital immediately by the ambulances waiting outside.

The high-speed railway tunnel was under construction when it collapsed on Wednesday morning. The reason for the collapse is still under investigation.

Difficult words: conscious (awake and active).