Large swathes of Bangladesh were left without electricity on Tuesday after a grid failure, a government official said, adding that authorities were working to gradually restore power supply in the country of 168 million people. The country's power grid malfunctioned at around 2 p.m. (0800 GMT) on Tuesday, leading to blackouts across 75-80% of the Bangladesh, Bangladesh Power Development Board official Shameem Hasan told ReuteAn investigation was underway to ascertain the reason for the grid's collapse and power had been restored in 45% of the regions hit by the blackouts, he said. Bangladesh, which gets three quarters of its electricity...