The fire department's investigation into the massive blaze at the ESIC Hospital in Marol on December 17, has revealed that more than 20 LPG cylinders were stored in the hospital's canteen. The probe report said the Brihanmumbai Municipal Corporation (BMC) has not yet received documents related to permissions for setting up the canteen.

The report said sparks/burning spatters from welding work passed through the opening of the second floor fire duct and came in contact with combustible material like stocks of nitrite rubber insulating materials, wooden boxes, adhesive, tins of paint and packing materials kept for renovation work in the ground floor storage area. It states that as the hospital doesn't fall under the BMC's jurisdiction, it was difficult to go through the required approvals of the hospital building, but still they want the MIDC chief fire officer to inspect the premises to find out whether there were irregularities.