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A destroyed house lays flooded in Catano town, in Juana Matos, Puerto Rico, on September 21, 2017.
Puerto Rico braced for potentially calamitous flash flooding after being pummeled by Hurricane Maria which devastated the island and knocked out the entire electricity grid. The hurricane, which Puerto Rico Governor Ricardo Rossello called "the most devastating storm in a century," had battered the island of 3.4 million people after roaring ashore early Wednesday with deadly winds and heavy rain.
 / AFP PHOTO / HECTOR RETAMAL        (Photo credit should read HECTOR RETAMAL/AFP/Getty Images)
A destroyed house lays flooded in Catano town, in Juana Matos, Puerto Rico, on September 21, 2017.
Puerto Rico braced for potentially calamitous flash flooding after being pummeled by Hurricane Maria which devastated the island and knocked out the entire electricity grid. The hurricane, which Puerto Rico Governor Ricardo Rossello called "the most devastating storm in a century," had battered the island of 3.4 million people after roaring ashore early Wednesday with deadly winds and heavy rain.
 / AFP PHOTO / HECTOR RETAMAL        (Photo credit should read HECTOR RETAMAL/AFP/Getty Images)

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Morning news briefing from CNN on Friday, September 22.

Morning news briefing from CNN

Morning news briefing from CNN on Friday, September 22.