US spy planes flying low on Tehsil Safi of Mohmand Agency let loose a reign of terror and panic in the area. US spy plane Sunday morning suddenly entered into the territory of Mohamand Agency and made low flights at Kareer and Qandaro areas of Tehsil Safi. The drone hovering over the sky for several hours didn't fire, but yet the area was thrown into an extreme fright and fear, as it kept flying till the filing of this report.