22 children are dead and at least 25 others are hospitalized after eating free school lunches tainted by poison in an Indian village. The poison is a chemical that is commonly used in agriculture and is identified by the U.S. Health Department as a nerve agent related to sarin gas.

CNN.com reports that the children were between the ages of five and 12. The deaths triggered violent protests in the Bihar state of India.

Bihar's Education Minister P.K. Shahi said the deaths were clearly a result of poisoning and an investigation will be launched to determine if the contamination was accidental or deliberate.