New Delhi, Apr 17 (PTI) A 28-year-old man, who was digging a sewer pit, was killed today after a mound of mud caved in on him, police said.

Umar got trapped inside the pit and though he was rescued, he was declared brought dead at a hospital, they said, adding that he died due to suffocation.

The other labourers, who were working on top of the pit, escaped as soon as they noticed the mound caving in, they said.

Police have registered a case and are probing whether the incident was caused due to someone's negligence.

The pit was 10-feet deep and the mud.

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