WASHINGTON—Justice Ruth Bader Ginsburg was admitted to a Baltimore hospital Tuesday for the treatment of a possible infection and will remain for a few days to receive intravenous antibiotics, the Supreme Court said.

The court said Justice Ginsburg, 87 years old, was admitted to Johns Hopkins Hospital and underwent an endoscopic procedure to clean out a bile duct stent. The justice experienced fever and chills but is now resting comfortably, the court said.

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