Former President Bill Clinton was hospitalized earlier this week for an issue not related to COVID-19 and is recovering, his spokesman said Thursday. 

Clinton, 75, was admitted to the University of California Irvine Medical Center on Tuesday "to receive treatment for a non-COVID-related infection," his spokesman Angel Urena said in a statement.

"He is on the mend, in good spirits, and is incredibly thankful to the doctors, nurses, and staff providing him with excellent care," Urena said.

Clinton was in California earlier in the week for an event related to his nonprofit Clinton Foundation and was taken to the hospital after reporting he wasn't feeling well, according to CNN chief medical correspondent Sanjay Gupta.

The issue was not related to COVID or to his heart, Gupta reported, after interviews with Clinton's doctors, but a blood infection sometimes known as sepsis. Clinton underwent a heart bypass surgery in 2004 and had stents placed in 2010.

Clinton's doctors, Alpesh Amin and Lisa Bardack, issued a joint statement Thursday night saying Clinton was responding well to treatment for his infection.

"He was admitted to the hospital for close monitoring and administered IV antibiotics and fluids. He remains at the hospital for continuous monitoring," they said. "After two days of treatment, his white blood cell count is trending down and he is responding to antibiotics well."

Amin and Bardack added that they have been in constant communication with Clinton's New York-based medical team, including his cardiologist.

"We hope to have him go home soon," they said.