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Prince Philip has spent three nights in a London Hospital as a precautionary measure because he hasn’t been feeling well, according to Fox News.

Prince Philip, 99, was taken to the private King Edward VII Hospital Tuesday night.

At the hospital, he has been under “observation and rest.”

Queen Elizabeth II and Prince Philip got their vaccinations in January.

Amid coronavirus lockdowns, Prince Philip has been staying at Windsor Castle.

From Fox News:

Philip last had a spell in a hospital when he spent four nights at the King Edward VII in December 2019, where he was treated for a “pre-existing condition” and discharged on Christmas Eve.