A university in Pakistan's northwestern region that was once controlled by the Taliban has banned mixed gatherings of male and female students outside the classroom, amid a resurgence in the influence of the Islamist militia in the area. Gomal University in the city of Dera Ismail Khan ordered female students to confine themselves to classrooms for what it said were security reasons, spokesman Raja Alamzeb told dpa. "But there's no segregation of the classes," Alamzeb said. The city is adjacent to the towns of Waziristan on the Afghan border that long served as headquarters for Islamist militants.