Nepal, July 1 -- The death toll from a powerful explosion at an Indian chemical factory has risen to 36, as search and rescue operations continued for a second day Tuesday, officials said.

The blast in Sangareddy in India's southern Telangana state on Monday turned parts of the building into rubble.

Industrial disasters are common in India, with experts blaming poor planning and lax enforcement of safety rules.

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State Chief Minister Revanth Reddy visited the site on Tuesday, with a video released by his office showing piles of twisted metal in the wreckage of the factory.

Reddy said there were 143 people at the factory when the explosion happened.

"Rescu...