At least three people were killed and 10 others were feared trapped after a coal mine collapsed during illegal extraction in West Bengal's Paschim Bardhaman district, officials said on Friday.
Police suspect that the incident took place when coal was being illegally extracted from Narayankuri colliery of the Eastern Coalfields Limited (ECL) in Egra gram panchayat in Raniganj police station area, around 18 km from Asansol.