"We have some indications that [Libi] was in the house or in the neighborhood, but whether he was killed or not is still unclear," a Pakistani intelligence official in the region said Tuesday in a telephone interview. The strike drew a strong public protest Tuesday from the Pakistani government, which called the attack illegal. The Pakistani Foreign Ministry said it summoned Richard E. Hoagland, the deputy chief of mission at the U.S. Embassy in Islamabad, and informed him "that the drone strikes were unlawful, against international law and a violation of Pakistan's sovereignty." In a statement, the Foreign Ministry added that drone strikes represent "a clear red-line for Pakistan" and noted that the country's Parliament has declared them "unacceptable." Libi's death "would be a major blow to "core" al-Qaeda, removing the No. The U.S. official, who spoke on the condition of anonymity to discuss counterterrorism operations, said Libi had been serving as "general manager" for al-Qaeda's main branch, overseeing the terrorist group's day-to-day operations in Pakistan as well as its links to affiliates around the world. U.S. and Pakistani officials confirmed that missiles struck a house in North Waziristan, a tribal province on Pakistan's border with Afghanistan, around sunrise Monday, and that multiple deaths were reported. While it remained unclear whether Libi or "other high-value targets" were among the dead, the official said, there were a "large number" of victims, including men thought to be of Arab or Central Asian descent. Area residents said the house in the remote village of Khasso Khel was demolished in the strike. The house had 15 to 20 rooms and belonged to a "local facilitator of Arab fighters, to provide them accommodation," one tribal source said Tuesday, speaking on condition of anonymity for fear of retribution from militants.