Fire officials said, "The incident occurred at around 2 am and could have been caused due to a short-circuit in the electric meter cable box. The fire was brought under control at around 6:30 am. Four people were killed and eight injured."
The building is located in the Sidharth Nagar of Vikhroli.
"All residents have been evacuated from the building. Some of the injured have been taken to Rajawadi Hospital," added the fire official.
(With agency inputs)