Various agencies continued to conduct investigations into Saturdays explosion and fire onboard a beached tanker at the Alang-Sosiya Ship Recycling yard.
The mishap onboard MT Union Brave killed five workers on the spot while another died during treatment on Sunday. One worker is being treated for severe burns.
As per protocol,the Gujarat Maritime Board,the nodal agency at the yard,Sunday sealed plot no. 82,where the accident took place,pending the completion of enquiries.
Sources said officers from the Directorate of Industrial Safety and Health (DISH),the Petroleum and Explosives Safety Organisation (PESO),the Gujarat Pollution Control Board (GPCB),the police and GMB visited the plot for investigations by Monday evening.
No definitive clues appear to have been dug out as yet,though most officials believe the workers must have used gas cutters to open a compartment or pipeline containing inflammable material near the pump-room instead of using spanners to unbolt screws.