2 Hong Kong construction workers in critical condition after firefighters pull them unconscious from manhole at worksite near airport

The two men were unconscious when pulled free, while colleagues who tried to rescue them are in serious condition after inhaling what was believed to be toxic sewage gases.

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,North Lantau Hospital ,Sewer ,Sung Chung ,Workers ,Construction Accident ,Anhole Men ,Construction Rescue ,Sewer Gases ,