Thousands of Jamaicans were still without power, water and internet service on Thursday as the government continued to assess the widespread damage from Hurricane Melissa.

Hurricane Melissa made landfall in eastern Cuba as a Category 3 storm early Wednesday after bringing violent winds and heavy rainfall to Jamaica, where it made landfall as a Category 5 storm Tuesday. Images are now showing the destruction, particularly flooding and structural damage, caused by the storm.

Secretary of State Marco Rubio said the State Department had issued a formal Declaration of Humanitarian Assistance for Cuba, where U.S. government aid is rare.

Cuban officials report no fatalities, but there has been extensive damage. Multiple Caribbean countries are reeling in the wake of Hurricane Melissa, which has been traveling through the region for the past few days, bringing torrential rains, devastating winds, landslides and flash floods.

The storm was making its way to the Bahamas and Bermuda on Thursday morning as Jamaica confronted the devastation from one of the most potent storms ever recorded anywhere.

The storm made landfall in Jamaica on Tuesday as a Category 5 storm and is expected to still be a major hurricane when it reaches eastern Cuba.