The site was being used to accommodate construction workers engaged in the BMC PAP. The fire is suspected to have started from a small fire at the site before spreading and leading to the explosion of gas cylinders, officials said

The incident was reported to the BMC's Mumbai Fire Brigade (MFB) Control at around 9.14 pm. The fire brigade declared it a Level I fire at 9.18 pm. The building is located opposite Shital Phoenix Class on Shubhash Lane in Kandivali West