Militants in Pakistan have attacked an army base that some have speculated may store a number of the country’s nuclear weapons. The attackers struck the Minhas air force base overnight, battling with Pakistani troops until the early morning hours. Seven militants and one soldier were reportedly killed. It is believed the gunmen had intended to target warplanes in anticipation of a Pakistani military attack on the militant stronghold of North Waziristan. The base is believed to hold at least some of Pakistan’s nuclear arsenal of an estimated 100 warheads, but the Pakistani military has denied the storage of any nuclear weapons there.