Frequent power outages have also raised public health concerns. Children stick their heads out the door to cool off in Havana, the capital city of Cuba, on the 14th (local time) when a major power outage occurred. AP Yonhap News In Cuba, which is suffering from severe power shortages, the third nationwide power outage occurred this month. According to Reuters and AP, the Cuban Electric Power Agency said that power supply to the entire national power system was stopped at around 11:05 a.m. on the 14th (local time).