Addressing a press conference, 24 hours after Pakistan plunged into darkness, Khan on Tuesday, however, said the "possibility of foreign intervention through the internet is low".
The blackout, which Energy Minister Khurram Dastagir claimed was caused by a power surge, is the second significant grid breakdown in three months and adds to the nearly daily blackouts Pakistan's population experiences.
Pakistan Prime Minister Shehbaz Sharif has ordered an inquiry into the power outage in Pakistan that took place at around 7:34 am on Monday and left many cities including Karachi, Lahore, Quetta and Islamabad without electricity, Geo TV reported.
Locals at Chitral in Peshawar protested against power outages and dilapidated conditions of roads in their district on Sunday, the Dawn reported, adding that the protesters claimed that the government had not paid attention to their demands.
Pakistan's Ministry of Energy in a statement said that the frequency of the national grid went down at 7:34 am which caused a "widespread breakdown" in the power system. It further said that the restoration of grid stations has been started from Warsak.
"There are reports of multiple outages from different parts of the city. We are investigating the issue and will keep this space posted," said Imran Rana, Spokesperson, K-Electric in a Twitter post.
After all flights got grounded across the US, the Transport Secretary of the US, Pete Buttigieg on Wednesday said that the Federal Aviation Administration (FAA) is working to resolve the issue of system outage which resulted and assured that air traffic would soon resume normal operations.
Over 400 flights across the United States have been stranded due to a major outage in the computer system of the US regulator Federal Aviation Administration (FAA) on Wednesday.