Updated at 8:22 p.m. ET
Former Vice President Dick Cheney was taken to The George Washington University Medical Center Monday after experiencing chest pains, Cheney's office tells CBS News.
Cheney was resting comfortably in the Washington, D.C., hospital Monday night, according to a statement his office released. His doctors are evaluating the situation, the statement says.
Liz Cheney, the former vice president's daughter, says her father is "doing fine," a source close to her told CBS News Correspondent Bill Plante. Cheney is having some tests done, and the family will know more on Tuesday, Plante reports.
Cheney's hospitalization was reported hours after news broke that fellow GOP figure Bob Dole was recovering from pneumonia at Walter Reed Army Medical Center.
Cheney, 69, has a history of heart problems and has a pacemaker, The Associated Press reports.
In 2008, doctors restored a normal rhythm to his heart with an electric shock. It was the second time in less than a year that Cheney had experienced and been treated for an atrial fibrillation, an abnormal rhythm involving the upper chambers of the heart.
Cheney has had four heart attacks, starting when he was 37. He has had quadruple bypass surgery and two artery-clearing angioplasties.