Political leaders from across parties in the U.S. extended their sympathies to Democratic former President Joe Biden, 82, after his office announced Sunday that he was diagnosed with an “aggressive” form of prostate cancer.

“Last week, President Joe Biden was seen for a new finding of a prostate nodule after experiencing increasing urinary symptoms,” his personal office said in a statement. “On Friday he was diagnosed with prostate cancer, characterized by a Gleason score of 9 (Grade Group 5) with metastasis to the bone.”