Gerald Rudolph Ford, the 38th president of the United States, died Tuesday. He was 93 years old.

No cause of death was stated by his family in their announcement. Ford had battled pneumonia in January 2006 and underwent two heart treatments — including an angioplasty — in August at the Mayo Clinic in Rochester, Minn. He died at 6:45 p.m. PST at his home in Rancho Mirage, Calif.

"My family joins me in sharing the difficult news that Gerald Ford, our beloved husband, father, grandfather and great grandfather has passed away at 93 years of age," Ford's wife, Betty Ford, said in a brief statement issued from her husband's office.. "His life was filled with love of God, his family and his country."