Jan. 9 (UPI) — A failure in Pakistan’s nationwide energy grid left greater than 200 million folks with out electrical energy Saturday, native officers mentioned.

The widespread blackout occurred simply earlier than midnight, plunging the key cities of Karachi, Lahore, Islamabad and Peshawar into darkness, Vitality Minister Omar Ayub mentioned. He added that cell and Web providers additionally had been affected.

Ayub mentioned the ability grid failed after excessive transmission strains tripped, inflicting the frequency within the distribution system to drop all of the sudden from 50 to zero. Officers mentioned it might take a number of hours for energy to be restored.

“Systematic restoration of energy shall be initiated quickly,” representatives from the Vitality Ministry mentioned. “As soon as the preliminary frequency is met, the restoration work hastens.”

“Persons are urged to stay affected person,” Ayub mentioned.