MANSEHRA: Eight students, including a female, at Mansehra's Hazara University were injured when an unidentified person set off a hand grenade during a clash between students and a security guard on campus.
A clash occurred on campus when an argument, which broke out between a student and a security guard, turned violent.
Aerial firing also took place during the clash, although no one at the scene was hurt by the firing.
Taking advantage of the chaos, an unidentified person set off a hand grenade injuring the students.
Police and rescue teams arrived on the scene.
The injured have been admitted to King Abdullah Teaching Hospital for treatment.
Police teams began gathering evidence as a probe into the incident went underway.