A fire broke out early on Monday in a packing material unit in Byculla area of Mumbai, fire officials said.
Fire tenders were rushed to the spot to douse the flames.
According to the sources, the fire has been doused and cooling operations are underway.
No casualty was reported in the incident.
The fire was reported at around 5:30 am in Dhobi Ghat area, according to the fire department.
The cause of fire is not known yet.