At least 22 dead , one critical after eating school meals containing a poison , official says . The poison is a sarin-related nerve gas used in agriculture . Score: 6 CNN 's Sumnima Udas contributed to this report . The deaths have triggered violent protests and calls for a general strike .
At least 22 dead , one critical after eating school meals containing a poison , official says . The poison is a sarin-related nerve gas used in agriculture . Score: 6 The deaths have triggered violent protests and calls for a general strike .