A two-storey building housing a garment factory has collapsed in Bhiwandi near Thane, killing one person and injuring 15 others.
The incident occurred around 1 am.
Rescue operation to bring those trapped in the debris is on.
Initial reports suggest that the building collapsed due to ongoing illegal construction to add third floor to the old structure.
This is the second building collapse in the Thane district in less than a fortnight.