More than 70% of Cuba’s power connections have been restored following a days-long island-wide blackout, the government said on Tuesday, after Hurricane Oscar caused severe damage. The number of storm-related deaths has risen to 7, including a five-year-old child, as authorities continue to assess the damage, the government said. Power has not been fully restored yet in the eastern province of Guantánamo, which remains heavily affected by flooding and destruction from the storm. Officials have struggled to reach the hardest-hit areas of the country, which has been grappling with one of its wor…