MUMBAI, India (April 6, 2013)--The search has ended for survivors of a building collapse that killed at least 72 people in a suburb of India's financial capital, Mumbai.
Officials say the residential building was being constructed illegally when it collapsed.
Another 70 people were injured when the eight-story building on forest land in the Mumbai suburb of Thane caved in Thursday.
The dead included 17 children, police said.
At least four floors of the building had been completed and were occupied.
Police were searching for the builders to arrest them.
Building collapses are common in India as builders try to cut corners by using substandard materials.
The massive demand for housing around India's cities and pervasive corruption often result in builders adding unauthorized floors or putting up illegal buildings.
The neighborhood where the building collapsed was part of a belt of more than 2,000 illegal structures.