Golf star Tiger Woods' mother-in-law is in a stable condition after being taken from his Florida home in an ambulance, a hospital spokesman says.
Health Central Hospital spokesman Dan Yates said Barbro Holmberg had been admitted suffering from stomach pain.
Last week, Woods apologised to his family for letting them down amid speculation about his private life.
His statement came days after he was found bleeding and semi-conscious after crashing his car outside his home.
Woods' mother-in-law, who is governor of Gavleborg county in central Sweden, has been visiting her daughter Elin, a former model to whom Woods has been married for five years. The couple have two children.
WOODS IN THE SPOTLIGHT
27 Nov: Tiger Woods receives hospital treatment after car crash outside his home, fuelling speculation about his private life amid reports of a rift with his wife
2 Dec: Woods issues statement apologising to his family for letting them down with unspecified "transgressions"
8 Dec: Woods' mother-in-law taken to hospital after emergency call from Woods' home
A 911 emergency call was received from Woods' home in a gated community near Orlando in the early hours of Tuesday morning.
Local TV footage showed a blonde woman being wheeled on a stretcher into the hospital in nearby Ocoee.
Health Central is the same hospital where Woods was treated after he crashed his car into a fire hydrant and a tree outside his home last month.
The hospital spokesman said Ms Holmberg's condition was not serious but he could not be more specific because of privacy laws.
Mr Yates said she was in a private room and the family had hired additional security to keep the media away.
Woods' car crash on 27 November followed a story in a US gossip magazine that he had had an affair with a Los Angeles cocktail waitress.
The crash fuelled speculation that Woods had had a dispute with his wife.
The world number one golfer, a 14-time major champion, was later charged with careless driving and fined $164.
A police report released on Monday showed that a Florida Highway Patrol trooper had suspected Woods of driving under the influence, and sought a subpoena for the golfer's blood results from the hospital where he was treated following the crash.
A witness, who was not identified in the report, told the trooper that Woods had been drinking alcohol earlier, and had been prescribed the drugs Ambien and Vicodin.
Prosecutors rejected the request for a subpoena.