People affected by a chemical gas leak are carried out of a truck to an ambulance in Vishakhapatnam, India, Thursday, May 7, 2020. Chemical gas leaked from an industrial plant in southern India early Thursday, leaving people struggling to breathe and collapsing in the streets as they tried to flee. Administrator Vinay Chand said several people fainted on the road and were rushed to a hospital. (AP Photo)

A policeman stands guard near the LG Polymers plant, the site of a chemical gas leak, in Vishakhapatnam, India, Friday, May 8, 2020. 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. (AP Photo)

Smoke rises from LG Polymers plant, the site of a chemical gas leakage, in Vishakhapatnam, India, Thursday, May 7, 2020. Synthetic chemical styrene leaked from the industrial plant in southern India early Thursday, leaving people struggling to breathe and collapsing in the streets as they tried to flee. Administrator Vinay Chand said several people fainted on the road and were rushed to a hospital. (AP Photo)

Children receive treatment at a hospital following a chemical gas leak in Vishakhapatnam, India, Friday, May 8, 2020. 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. (AP Photo)

A National Disaster Response Force (NDRF) soldier is fitted with gear before he proceeds to the area from where chemical gas leaked in Vishakhapatnam, India, Thursday, May 7, 2020. Chemical gas leaked from an industrial plant in southern India early Thursday, leaving people struggling to breathe and collapsing in the streets as they tried to flee. Administrator Vinay Chand said several people fainted on the road and were rushed to a hospital. (AP Photo)

People pour water on a hatchling affected by a chemical gas leak in Vishakhapatnam, India, Thursday, May 7, 2020. Chemical gas leaked from an industrial plant in southern India early Thursday, leaving people struggling to breathe and collapsing in the streets as they tried to flee. Administrator Vinay Chand said several people fainted on the road and were rushed to a hospital. (AP Photo)

Firefighters walk with oxygen cylinders outside LG Polymers plant, the site of a chemical gas leak, in Vishakhapatnam, India, Thursday, May 7, 2020. Synthetic chemical styrene leaked from the industrial plant in southern India early Thursday, leaving people struggling to breathe and collapsing in the streets as they tried to flee. Administrator Vinay Chand said several people fainted on the road and were rushed to a hospital. (AP Photo)