Former President Joe Biden is battling what his spokesperson called on Sunday an “aggressive” form of prostate cancer.

The New York Times and other outlets reported on May 17 that the 46th president, out of office for less than five months, had been diagnosed with the illness after doctors found and evaluated a “small nodule” on his prostate. The nodule was detected during an examination of the 82-year-old former president at a Philadelphia hospital on Friday.