KHYBER AGENCY (Online) - Seven US gunship helicopters violated Pakistan airspace here on Monday. According to a private TV channel, the gunship helicopters kept hovering over the area of Landi Kotal for four minutes and then returned to Afghanistan. It was the first time that US gunship helicopters violated Pakistan airspace. The flights of US gunship created panic among local people. It is merit mentioning here that the US is carrying out drone attacks inside Pakistan. Islamabad stance is that drone attacks are a violation of its sovereignty and undermine efforts to deal with militancy because they inflame public anger. The US started drone attacks in Pakistan last year. There has been no let up in the attacks since US President Barrack Obamas administration took office in January despite repeated protest by the Pak govt.