At least six people have been killed and nine others were hurt after a five-storey building collapsed in Mumbai.
About two dozen people are feared trapped under the rubble in the Ghatkopar area of India's financial and entertainment capital.
The cause of the collapse of the building, which housed 15 families, is not yet known.
Rescuers are digging through the rubble in search of more victims, a spokesman for the emergency services said.
The building is thought to be 35 years old.
Also on Tuesday, a portion of a 100-year-old building collapsed in the eastern city of Kolkata. There were no reports of casualties but some people are feared trapped, police said.
Most residents left the building after noticing pieces of concrete falling, the Press Trust of India news agency said.
Building collapses are common in India during the monsoon season from June to September.
High demand and lax regulations encourage some builders to cut corners, use substandard materials or add unauthorised extra floors.
In 2013, a building being constructed illegally in Mumbai caved in, killing 74 people in the country's worst building collapse in decades.
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