Eight children fell ill after eating outdated biscuits in Jharkhand's Dhanbad district Monday, police said.
According to police, the children living in slum areas of Jharia locality in the district, about 240 km from here, ate the biscuits after picking up the packets from a pond situated close by.
They were then admitted to a hospital after they took ill. The condition of four of them was stated to be serious.
Police are trying to ascertain how the outdated biscuits packed in a polythene bag reached the pond.