The White House says President Barack Obama has spoken with former President Jimmy Carter and wished him a full and speedy recovery from cancer.
"Jimmy, you're as resilient as they come, and along with the rest of America, [Michelle and I] are rooting for you," Obama said in a statement.
Carter announced Wednesday that he has been diagnosed with cancer and will undergo treatment at Emory Healthcare in Atlanta.
Condolences and prayers poured in on social media following Carter's announcement as politicians, journalists and supporters of the former president wished him luck in his battle against the disease.
Carter, the nation's 39th president, says the cancer was discovered during surgery this month to remove a small mass in his liver.
It was not immediately clear where the cancer originated, but Carter said it is in "other parts of [his] body." The former president said he will release more information "possibly next week."