Laos cave rescue workers report ‘knocking sound’ in search for last 2 missing people

Rescue workers searching flooded caves in Laos reported hearing “a knocking sound” from inside the system as they sought to extricate two people.

​Rescue workers searching flooded caves in Laos reported hearing “a knocking sound” from inside the system as they sought to extricate two people.  International Rescue workers searching flooded caves in Laos reported hearing “a knocking sound” from inside the system as they sought to extricate two people.