3 workers die of asphyxiation while cleaning an underground tank at a dyeing mill (1 entrant and 2 would be rescuers)

Three workers died, and one is critical after suspected asphyxiation in an underground effluent treatment plant (ETP) tank at a dyeing mill. The condition of another worker remains critical, and he is undergoing treatment at a hospital

Workers (19, 23, 23) died, while another worker is undergoing treatment at a private hospital.

Source: https://timesofindia.indiatimes.com/city/surat/three-die-of-asphyxiation-inside-water-tank/articleshow/129168548.cms