Two horrific accidents in separate parts of India have triggered investigations and calls for better housing standards in the second-most-populous nation in the world.

A building under construction in the southern city of Chennai collapsed Saturday. When the 12-story building came down, 132 workers were in the basement collecting their wages. It is believed that heavy monsoon rains somehow led to the building's collapse.

Chennai is the capital city of Tamil Nadu state, but officials say most of the men came from Andhra Pradesh province. Joint collector Rekha Rani said around 26 people had been rescued. Rescue workers have been using gas cutters and shovels to search through debris after cranes lifted large pieces of concrete.

Indian newswire Press Trust of India reported Sunday that two women had been pulled from the site and identified as Sujata and Krishnaveni. Two other people also had been rescued during the night, bringing to 30 the number saved.

The Associated Press reported that five people have been detained in relation to the collapse. Two directors, two engineers and one supervisor of the construction company, Prime Sristi, were detained for questioning, said police officer George Fernandes.

Also, 11 bodies have been recovered from the rubble, and the rescue effort is in full swing, with over 100 personnel from Tamil Nadu Fire and Rescue Services, along with 120 others from the National Disaster Response Force.

Meanwhile, rescue efforts were ongoing in India's capital, Delhi, where 10 people were killed, including five children, when a 50-year-old building in a poor neighborhood collapsed early Saturday. According to officials, construction in the next building over could have caused the older building to collapse.

"The commissioner has ordered an inquiry into the incident under Additional Commissioner (Engineering) of the corporation and errant civic officials in this connection will not be spared, if found guilty of any irregularity," said North Delhi Municipal Corp. public relations officer Yogendra Singh Mann.