A breakdown in Pakistan's national power grid plunged the country into darkness on Saturday night, officials said.
"A countrywide blackout has been caused by a sudden plunge in the frequency in the power transmission system," Pakistan's Power Minister Omar Ayub Khan said on Twitter.
He said efforts were underway to determine the reasons behind the situation, and asked people across the country to remain calm.


Kuwait International Airport suffers 'significant damage' after drone attacks
Yemen's Houthis confirm launching attack on Israel
UN establishes task force to address Hormuz navigation challenges
Worker injured in drone attack on Oman's Salalah port, crane damaged
Bahrain contain fire at 'facility' after Iran attack
