1:48 AM
An army official said firing had stopped several hours after the attack but troops were still searching Bacha Khan University campus in Charsadda.
Four attackers were killed, the army said, amid conflicting reports about whether the Taliban were involved.
Taliban gunmen killed 130 students at a school in nearby Peshawar in 2014.
Charsadda is about 50km (30 miles) from the city. About 3,000 students are enrolled at Bacha Khan.
Four attackers were killed, the army said, amid conflicting reports about whether the Taliban were involved.
Taliban gunmen killed 130 students at a school in nearby Peshawar in 2014.
Charsadda is about 50km (30 miles) from the city. About 3,000 students are enrolled at Bacha Khan.
