Melania Trump is in Germany as President Trump attends the G-20 summit.
Hamburg Police said the First Lady cannot leave the hotel because of a raucous demonstration growing outside the hotel where the Trumps are staying.
Officials said Melania Trump is "completely safe," but will miss a spousal program at the G-20 summit, which her spokesperson noted she was looking forward to attending.
Police use water cannon to clear blockade by G20 protesters
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