Attackers armed with assault rifles and hand grenades struck a police training academy in eastern Pakistan on Monday, triggering a shootout that killed eight officers in the same area where Sri Lanka's cricket team was ambushed less than a month ago. The gunbattle was still going on more than an hour after the attack began on the outskirts of Lahore, with paramilitary rangers joining the fight, according to officials and live footage from the scene. "It is a complete panic here. We do not have any idea how many the attackers are, and how many of them are dead, or hiding in nearby buildings," officer Syed Ahmad Mobin told The Associated Press. "We are fighting them." The attack, which also wounded at least 20, underscored the growing threat of militancy to nuclear-armed Pakistan, which is under US pressure to battle al-Qaida and Taliban militants on its soil.