At least 10 people have died and dozens more left trapped after a three-storey block of flats collapsed in Mumbai, according to reports.
As many as 100 people are feared to be stuck in the building in Bhiwandi, Satya Pradhan, the chief of the National Disaster Response Force said in a tweet.
A child - among several people rescued - has been rushed to hospital after being pulled him from under the debris, local media have said.
The National Disaster Response Force (NDRF), fire brigade and police teams are all at the scene following the collapse at around 3.40am on Monday.
It is understood the building - in the Patel Compound area - contained at least 21 flats and was over 30 years old, with many residents asleep during the collapse.
TV coverage showed pictures of rubble and a rescue dog running through the scene.
Reuters partner ANI quoted the spokesman of Bhiwandi municipal corporation as saying eight people were dead.
The news agency quoted a Thane Municipal Corporation spokesperson as saying: "The number of deaths have risen to eight in Bhiwandi building collapse incident. Five more people have been rescued."
The Jilani Apartment building is understood to have been constructed in 1984.
Pankaj Ashiya, commissioner of Bhiwandi Nizampur City Municipal Corporation (BNCMC), said: "There is no confirmation on how many of the flats were occupied.
"Around 50-100 residents are fear trapped under the debris.
"The team has managed to pull out 11 residents alive while ten died.
"The building is more than 30 year old and we had served notice to the owner and residents recently,” he said.
Building collapses are commonplace in India, particularly during the seasonal monsoon rains, due to old and often illegal construction.
There was no immediate reason provided for the latest incident in Bhiwandi.