Former Vice President Dick Cheney suffered a “mild heart attack” on Monday, multiple news outlets are reporting.

The Associated Press reports that Cheney aide Peter Long issued a statement Tuesday that hospital lab tests found “evidence of a mild heart attack.” Long said the 69-year-old Cheney underwent a stress test and a heart procedure.

CBS News White House correspondent Mark Knoller posted via Twitter that Cheney “underwent heart catheterization & ‘is feeling good.'”

Cheney was taken to George Washington University Hospital on Monday after he reported having chest pains, NBC News and CNN reported.

Cheney, who has a pacemaker, has a long history of heart problems and has had quadruple-bypass surgery and two artery-clearing angioplasties. He had his first heart attack at age 37. This is his fifth.

Knoller said Cheney is expected to be discharged from the hospital in the next day or two.