US Supreme Court Justice Ruth Bader Ginsburg has been taken to hospital after experiencing chills and fever.
After being evaluated at Sibley Memorial hospital in Washington, she was transferred to Johns Hopkins for further examination.
It is expected that the 86-year-old could be released as early as Sunday.
In the past year, Ginsburg was treated for cancer twice and even missed the court session earlier this month after being hit by a stomach bug.
She was appointed to the Supreme Court in 1993 by then US President Bill Clinton.


Israeli forces kill Palestinian teen in West Bank, health ministry says
Trump sues BBC for defamation, seeks up to $10 billion in damages
FBI foils 'terror plot' targeting Los Angeles
Hong Kong court finds tycoon Jimmy Lai guilty in landmark security trial
Ukraine peace talks stretch into second day at start of pivotal week for Europe
Flash floods kill at least 37 people in Morocco's Safi province
'Hero' who disarmed Bondi gunman recovering after surgery, family says
School bus accident in Colombia kills 17, injures 20
