Several cities and towns in Pakistan plunged into darkness after a massive blackout, the country’s media reported.
The outage was reported shortly before midnight on Sunday almost simultaneously in many cities, English daily Dawn said.
Residents of Karachi, Rawalpindi, Lahore, Islamabad, Multan, and others faced the blackout, the reports added.
Islamabad Deputy Commissioner Hamza Shafqaat tweeted that the National Transmission Dispatch Company's (NTDC) lines have tripped, causing outage.
"It will take sometime before everything gets back to normal," he said in his tweet.
Power Minister Omar Ayub tweeted the "frequency in the power distribution system suddenly dropped from 50 to 0 which caused the blackout," the report said.
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