Kollam, Aug 08 (ANI): A hospital is treating 80 students from two schools for respiratory problems after they complained of headache, nausea and vomiting following gas leak in a factory Kerala. Students were hospitalised after gas leak at Kerala Minerals and Metals Limited (KMML) factory in Chavara village in Kollam district of Kerala. The admitted students, from nearby Chavara Government Girls Higher Secondary School and a government college, suffered breathing problems and were vomiting after going to school. The students, however, are out of danger, said a doctor at the hospital.