Lucknow: At least three sanitation worker died during a sewer cleaning operation in Uttar Pradesh's Noida on Thursday, according to ANI.
The incident took place in sector 110 in Noida.
The incident took place just days after four labourers died in the newly-built septic tank in an under construction building in Bihar's Siwan.
The labourers died due to suffocation inside the septic tank where they had climbed down to remove construction material.
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