At least nine people were injured and one person is feared trapped when a single-storey "dilapidated" house in Bhiwandi township of the district collapsed early on Tuesday morning, the police said.
The house located in Tandel Mohalla of the town came crashing down at around 5 am when its occupants, all members of one family, were asleep, the police said.
The firemen and team from Bhoiwada police station rushed to carry out rescue operation.
They pulled out nine people from under the debris and sent them to the IGM government hospital in Bhiwandi where they were said to be out of danger, police said. One person is still feared to be trapped under the debris and the search is underway to find him, they said.
The police were yet to ascertain whether the ill-fated structure was an authorised one.
Bhiwandi tehsildar Vaishali Lambate said the house, a "load bearing" structure, was over 30-year-old and listed among dilapidated and dangerous buildings by the civic body.
She also said that efforts were on to rescue a 75-80 year old person, who was feared trapped under the debris.