MUMBAI, INDIA: Insecticide-Laden Lunches Killed 22 Children, Doctor Says....Indian principal on the run after 22 students die from school lunches

STORY HIGHLIGHTS

• NEW: Police are searching for the headmistress and her husband for questioning
• At least 75 men attack a kitchen used to prepare school meals
• The cook refutes claims that she had raised concerns about the cooking oil
• Authorities believe the poison is a sarin-like nerve gas used in agriculture

Bihar, India (CNN) -- The headmistress of the school where poisoned lunches killed 22 students is on the run.

Local police chief Sujit Kumar said authorities are looking for the principal, who was not named, and her husband for questioning.

The students started soon after their first bite of rice and potatoes at the school in the northeastern state of Bihar on Tuesday. Some fainted.

Twenty four remained hospitalized Thursday.

Now, attention is turning to government accountability over the school food program that feeds more than 100 million children -- often with different standards across the country.

"It is just a reflection of the sort of neglect ... and these sorts of concerns in that state and states around that area," said Reetika Khera of the Indian Institute of Technology in Delhi.

"In the southern part of the country, children get not only good quality food, they also get very nutritious food," she said. "But this is not the case in Bihar." READ More...