US drone shot down by Yemen's Houthi rebels, officials say
The Houthis said the aircraft was an MQ-9 Reaper drone flying over Yemeni airspace.
LEARN MOREThis is the second time in recent weeks that a U.S. Navy warship has downed a drone believed to have originated from Yemen.
The British military earlier said there had been a suspected drone attack and explosions in the Red Sea, without elaborating.
At least one person is dead; the status of the five others on the aircraft was not immediately known.
U.S. officials said two ballistic missiles were fired from Houthi-controlled areas in Yemen toward the USS Mason early Monday.
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CBP officials say the Tucson area, including Nogales, is already seeing the highest number of migrants coming into the country.
25 million U.S. students use diesel-powered school buses daily, prompting debates on cleaner alternatives.