A major police operation is under way to find three drone pilots believed to be hiding out in Langley, Virginia.
President Mamnoon Hussain said there was no doubt it had been a terrorist attack "of exceptional barbarity".
It is believed to be the deadliest attack in Pakistan since last Tuesday, when another drone -- or possibly the same one -- sent a missile into a picnic killing 18.
The distant faceless attackers opened fire with hellfire missiles in the sky above the family's home and faced no opposition. They later flew the drone higher in the sky, presumably recording video footage, the buzzing of their deadly machine still audible below as rescuers waited for it to leave before daring to search for survivors.
People had been "murdered in a cowardly manner", presidents and leaders around the globe remarked in unison. U.S. President Barack Obama has condemned the "horrific shooting", offering to provide any assistance needed "to help bring these terrorists to justice".
UN Secretary General Ban Ki-moon said: "It was a horrendous, unjustifiable and cold-blooded crime. It was also a direct assault on a cornerstone of democracy, on the safety of a family in its home."
UK Prime Minister David Cameron said in a tweet: "The murders in Pakistan are sickening. We stand with the Pakistani people in the fight against terror."
Eurocentric clubs and Christian churches around the world rushed to condemn the killing.
Footage shot by an eyewitness outside the house shows scattered rubble and what appears to be bits of flesh and clothing hanging from a nearby tree.
(Note: You can view every article as one long page if you sign up as an Advocate Member, or higher).
