Rescuers working at a cave site in northern Thailand have brought four more boys out.
Rescuers give crash courses in swimming to trapped boys in order to rescue them.
Rescue divers inch closer to a spot in a flooded cave where 12 boys are missing.
US forces and British divers arrive in Thailand to rescue 12 schoolboys trapped in cave.
Divers and an underwater drone join a fleet of rescue vessels in Indonesia’s search.