Veteran politician and former Peace Corps director Sargent Shriver has been hospitalized near Washington.
Suburban Hospital in Bethesda, Maryland said Monday the 95-year-old Shriver had been admitted to the medical center, but gave no further details.
Shriver was the brother-in-law of Massachusetts Democratic Senator Edward "Ted" Kennedy, who died in 2009, U.S. President John F. Kennedy, who was assassinated in 1963, and Robert F. Kennedy, the former U.S. senator, attorney general and presidential candidate who was assassinated in 1968.
Shriver was married to their sister, Eunice Kennedy Shriver, who in 1968 founded the Special Olympics program for the mentally disabled. She died in 2009.
Sargent Shriver was the first director of the Peace Corps, the volunteer program that allows Americans to serve in underdeveloped countries. The program was established under President Kennedy.
Additionally, Shriver was tapped as the running mate for Democratic presidential nominee George McGovern in 1972.
In 1994, Shriver received the Presidential Medal of Freedom, the United States' highest civilian honor.
Shriver is the father of Maria Shriver, who is married to Arnold Schwarzenegger, the former Republican governor of California.
Some information for this report was provided by AP, AFP and Reuters.