Able Seaman Mundell, Leading Seaman Amrithlall Ramdin and Seaman Henro Ter Borg, died when they were overcome by methane gas fumes as they descended into a sewage pit to help screaming construction workers.
Three construction workers also died and more than 20 members of the Navy who recovered the bodies with the aid of a breathing apparatus, had to be treated at hospital. The navy has set up a board of inquiry and SAPS are also investigating.
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