According to details, unknown men attacked with a hand grenade on Lond Khur Girls College in Takht Bhai city of KPK, when hundreds of students and teachers gathered there to participate the ceremony.

Nineteen people including 17 students were hurt in minor blast. The injured have been shifted to Lond Khur Hospital and Mardan Hospital. But two of them are reportedly in severe condition.

Police have cordoned off the area and have begun their investigation.