Some 90 elementary students who showed signs of food poisoning during a school trip were rushed to a hospital, the Busan Metropolitan City Office of Education said Monday. 




The students had complained of stomach ache, high fever and diarrhea. About 220 students had gone on a three-day school trip Wednesday to Gangwon Province.

Authorities are investigating what food or beverage could have caused the poisoning, the government body said.

An official report is expected to be released later this week.

By Bak Se-hwan (sh@heraldcorp.com)