Boston ? Massachusetts Sen. Edward Kennedy remained in the hospital Sunday, awaiting test results that could explain why the 76-year-old Democrat suffered a seizure a day earlier.

Doctors at Massachusetts General Hospital said it would be today at the earliest before tests were complete, and the hospital and Kennedy’s office released no new information about his condition on Sunday.

Kennedy was resting, eating and watching the Boston Red Sox and Boston Celtics games on television Sunday afternoon, said a top aide who requested anonymity because the family had asked that details of the senator’s hospital stay not be released.

Doctors originally suspected Kennedy had suffered a stroke, but his physician, Dr. Larry Ronan, later said it had been a seizure and that the senator was “not in any immediate danger.”