Clinton admitted to hospital after blood clot found

US Secretary of State Hillary Clinton was admitted to a New York hospital on Sunday with a blood clot linked to a concussion she suffered earlier this month, the State Department said.

The announcement appeared certain to stir up speculation over the health of one of the United States' best-known political figures.

Clinton, 65, has been out of the public spotlight since mid-December, when officials said she suffered a concussion after fainting due to a stomach virus.