France's Palace of Versailles is evacuating its visitors for security reasons and will be closed on Tuesday, the Chateau de Versailles said on social network X.
BFM TV, citing police sources, said a bomb squad was on its way to the site.
On October 14, one day after a teacher was killed in an attack, bomb alerts - which proved to be false - forced the evacuation of the Louvre museum, the Palace of Versailles and Paris' Gare de Lyon train station.
Damascus cafe blast kills 5, wounds 16
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Russian air strikes kill 10, injure more than 50 in Ukraine's Kyiv
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Firefighters battle wildfire in southern France
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Trump honours Theodore Roosevelt in North Dakota, debuts new Air Force One
President Donald Trump dedicated a museum honouring Theodore Roosevelt on Wednesday, invoking the Republican president's legacy and linking it to his own vision for America ahead of the country's 250th anniversary.
