A U.S. national park comprising a cluster of uninhabited islands in the Florida Keys was closed Monday after 300 migrants made 10 landings there over the weekend. Details: https://www.cbsnews.com/miami/news/300-migrants-made-landings-at-dry-tortugas-national-park-in-florida-keys/ #cbsnewsmiami #news #florida #miami #southflorida #miamidade #floridakeys #monroecounty #drytortugas