To get an idea of how dire the situation is in hurricane-battered Puerto Rico, take a look at these before-and-after photos of the island. The images, from a National Oceanic and Atmospheric Administration satellite, offer aerial views of the US commonwealth. Usually the island's coastal towns and cities glimmer in a ring of light. San Juan and other cities show the dim light of generator power. The island of Vieques is completely dark.

Source: CNN September 26, 2017 13:26 UTC