At least 16 students of Haritana Adarsha School at Pathorghata upazila in Barguna district fell sick in last two days due to unknown disease.
Utpal Kumer Mitra, headmaster of the school, said 13 female students fell sick on Wednesday and they were admitted to Pathorghata Hospital.
Three more students fell sick Thursday and they were also admitted to the hospital, he said.
Contacted Dr Anwarul Haque of the hospital, said the victims were given treatment.
Nothing could be said specificly about the disesae, he said.
Pathorghata Upazila Health Complex Officer-in-Charge Ramesh Chandra said it might be one kind of hysteria.
The school had been declared closed, said the upazila education officer Mostofsa Alam.
