A minor leak was detected in the sulfuric acid storage plant at Vedanta Resources PLC's shuttered Tuticorin copper smelter in India's Tamil Nadu state, Reuters reported June 18.

In late May, the state ordered the permanent closure of the site after recent violent protests that killed 13 people.

The leak was not believed to be problematic, but the authorities decided to evacuate the storage as a safety precaution, said Sandeep Nanduri, the administrative official of the district where the plant is located.

Vedanta Resources unit Vedanta Ltd. did not immediately respond to the news outlet's request for comment.