The reports are the latest indication of the damage inflicted by Hurricane Maria, the most powerful storm to strike Puerto Rico in more than 80 years and the third major hurricane to batter parts of the Caribbean and the United States this season. Maria also pummeled parts of the U.S. Virgin Islands, lashed Turks and Caicos on Friday morning and took aim at the Bahamas, where it could dump as much as 20 inches of rain.