Former US President Bill Clinton arrives to attend a church service for former French President Jacques Chirac at the Saint-Sulpice church in Paris on September 30, 2019.
CNN  — 

Former President Bill Clinton will remain at University of California Irvine Medical Center in Orange, California, for at least one more night, and is expected to be discharged Sunday, his spokesperson Angel Ureña said in a statement Saturday on Twitter.

Clinton “continued to make excellent progress,” Ureña added. “He will remain overnight at UC Irvine Medical Center to continue to receive IV antibiotics before an expected discharge tomorrow.”

Clinton has spent several days in the intensive care unit for a urinary tract infection, which spread to his bloodstream, CNN previously reported.

“He is in great spirits and has been spending time with family, catching up with friends, and watching college football,” Ureña noted.

CNN cameras filmed former Secretary of State Hillary Clinton and daughter Chelsea Clinton arriving at the facility Saturday morning for a visit.

Clinton received several calls from well-wishers Saturday, including Vice President Kamala Harris, former President George W. Bush and Clinton’s own former Vice President Al Gore, according to a source familiar with the situation. President Joe Biden also spoke with the former President in a phone call on Friday.

Clinton has been walking around the hospital as he recovers. “He just went for a walk on the floor, and the hospital staff had to ask him to slow down,” the source said.

According to a source familiar with the situation, the kind of antibiotic needed to treat Clinton’s type of infection has to be administered via IV and not orally, which is why he’s remaining in the hospital.

Clinton, who was in California for a private event for his foundation, had been feeling fatigued on Tuesday and was admitted to the hospital after testing, according to his office. Hillary Clinton went to the event on Thursday evening to “represent both of them” and then went to the hospital to be with the former President, a Clinton spokesman told CNN.

The former President’s doctors said urological infections are very common in older people, and they are easily treated, although they can quickly spread to the bloodstream.

Clinton, 75, had quadruple bypass heart surgery in 2004 and had two stents inserted to open one artery in 2010. His doctors stressed his current hospitalization is not heart- or Covid-19-related.

This story has been updated with additional information.