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Hundreds of millions of people in Pakistan were left without electricity as the whole country was hit by a massive blackout.
The power cut went on for 18 hours before electricity was restored on Sunday as cities including the capital Islamabad, Karachi and Lahore went dark.
A complex distribution system means a problem in one section of the grid can lead to breakdowns across the country.
Read More : https://www.dailymail.co.uk/news/article-9131921/Lights-come-Pakistan-powercut-left-210-MILLION-people-without-electricity-hours.html