Indian authorities evacuated more people from villages near a South Korean-owned chemical factory where a gas leak killed 12 people and left about 1,000 struggling to breathe.
Authorities said the evacuation was precautionary, but it triggered panic among people overnight that another gas leak was occurring.
"No, there was not another leakage,'' National Disaster Response Force spokesman Krishan Kumar said Friday.
Factory owner LG Chem said it asked police to evacuate residents because of concerns that rising temperatures at the plant's gas tank could possibly cause another leak. The company said it was injecting water into the tank and applying other measures to keep temperatures under control.
A state administrator in the district, Vinay Chand, said authorities flew in chemicals from a neighboring state to neutralize the gas completely before allowing people to return to their homes.
Expert teams were checking the factory's vicinity for any aftereffects of the gas leak. Residents of five villages are waiting for a clear signal to return to their homes, Chand said.
The initial evacuations on Thursday affected about 3,000 people.
The death toll rose to 12 on Friday with one person dying in a hospital, P.V. Sudhakar, a doctor, said.
Chand said 316 people were being treated in hospitals and were in stable condition. State police chief Damodar Gautam Sawang said 800 people were released after treatment on Thursday.
The chemical styrene, used to make plastic and rubber, on Thursday leaked from the LG Polymers plant on the outskirts of the eastern coastal city of Vishakhapatnam in Andhra Pradesh state while workers were preparing to restart the facility after a coronavirus lockdown was eased.-AP. Photo: CNN

Firefighters outside LG Polymers plant, the site of a chemical gas leak, in Vishakhapatnam, India, Thursday, May 7.

India evacuates villages near leaking LG Chemical plant