Former President Jimmy Carter undergoes liver operation

The Carter Center says former President Jimmy Carter has undergone a medical procedure to remove a small mass in his liver, and that he's expected to make a full recovery.

A statement released by Carter's spokeswoman Deanna Congileo described Monday's operation at Emory University Hospital in Atlanta as an elective procedure.

It said the procedure was done without issues, and that the prognosis "is excellent for a full recovery." The Carter Center's statement offered no other details.

Carter was the nation's 39th president. The native of Plains, Georgia, is also a former Georgia governor.

Julia Prosser with the publisher Simon & Schuster said Carter completed a tour Saturday promoting his latest book, "A Full Life: Reflections at 90."

Carter, 90, is the second-oldest living U.S. president. He is in good health and travels extensively. Last month, Former U.S. President George H.W. Bush, 91, was hospitalized for four days after breaking a bone in his neck in a fall at his summer home in Kennebunkport, Maine.

Al Jazeera with The Associated Press