Two more farm workers were hospitalized due to suspected food poisoning after complaining of stomach pain and nausea, health authorities said.

The two, according to Dr Manuel Rabara, chief of Dr. Amado Diaz Hospital, said the two were among the 21 farm workers who were hired to harvest palay in nearby Pigcawayan, North Cotabato on Monday.

Earlier, farm workers from a remote village here have been hospitalized after complaining of severe stomach pain and vomiting in what medical experts said could be a case of food poisoning.

Rabara said the health condition of nine male farm workers have been improving.

Rabara said health workers believed the spoiled noodles triggered the poisoning since all those in the hospital have taken the noodles while those who did not remained healthy.