Boston.com links to Ted Kennedy's hometown paper:
HYANNIS -- U.S. Senator Edward M. Kennedy was rushed by ambulance to Cape Cod Hospital this morning after falling ill at the Kennedy compound in Hyannisport.
Hyannis fire responded to the compound after a call was made around 8:30 a.m. It's unclear what Kennedy's medical condition is, but after he spent almost two hours in the emergency room a decision was made to transfer him to Mass General Hospital in Boston.
Kennedy, 76, was placed on a stretcher and wheeled out to the MedFlight helicopter around 10:15 a.m. where it took off from Barnstable Municipal Airport.
The Kennedy family is preparing to host the annual Best Buddies Challenge event in Hyannisport this afternoon, which is a fund-raiser for the organization. Best Buddies was founded by Anthony Kennedy Shriver and helps people with intellectual disabilities.
Hundreds are expected to participate in the event, which kicked off this morning with a 100-mile bicycle ride from the Kennedy Library in Boston to Hyannisport.
A concert at the Kennedy compound is scheduled for tonight.
Kennedy has represented Massachusetts in the United States Senate for forty-three years.
He was elected in 1962 to finish the final two years of the Senate term of his brother, Senator John F. Kennedy, who was elected president in 1960.
Since then, Kennedy has been re-elected to seven full terms, and is now the second most senior member of the Senate.
Bostodelphia will check in after whatever is happening clarifies. There has not been any official announcement, though various news outlets are batting the word "stroke" about in their headlines without sourcing the diagnosis. Given Kennedy's age and medical history, a stroke is surely possible, but Bostodelphia hasn't seen any definitive, or offical pronouncement.
Update:boston.com provides extended account, including reactions from MA and national politicians.