U.S. former President Bill Clinton is recovering in a California hospital after two days of treatment for an infection, his doctors said on Thursday.

The 75-year-old was admitted to the University of California Irvine Medical Center on Tuesday evening "for a non-COVID-19 infection," Clinton spokesman Angel Urena said on Twitter.

"He is on the mend, in good spirits, and incredibly thankful to the doctors, nurses and staff providing him with excellent care," Urena wrote. The spokesman added to Reuters: "He’s up and about, joking and charming the hospital staff."