Breitbart News is reporting that the deadly chemical released into the air in California over the weekend has resulted in at least 15 deaths.
California Department of Water Resources officials confirmed on Sunday that two people have died and another four people have been hospitalized.
The State Water Resources Control Board said that the chemical released on Sunday evening was a form of cyanide.
The California Department of Health, Fire and Environmental Control said it is treating the incident as a possible human health concern.
Officials are now urging people to stay indoors until further notice.