Senator Edward Kennedy was recovering in hospital after he suffered a seizure and the doctors said he was not in immediate danger.
NEW YORK: Senator Edward Kennedy, a highly influential Democratic lawmaker and a leading liberal, was recovering in hospital after he suffered a seizure and the doctors said he was not in immediate danger.
A series of tests were being conducted to determine the cause, they said.
Hours after he was admitted in a Boston hospital, his doctor Larry Ronan said the 76-year old Senator is resting comfortably and watching sports.
He will undergo a series of tests over the next two days when the course of treatment would be determined, he said.
Family members, including his three children, rushed to the hospital after the first report said he showed "stroke-like symptoms" but later it was found that he did not suffer from stroke.
Several doctors appearing on television said the cause could be determined only after tests were conducted. The seizure, they said, could result from several causes from low blood sugar to tumour in brain to clogged arteries.
Kennedy fell sick at his Cape Cod home and was rushed to Cape Cod hospital and was later flown to Massachusetts General Hospital. He suffered a second seizure while being taken to Boston in a helicopter.
The second longest serving Senator, Kennedy was among the first to endorse Barack Obama for party candidature for the November Presidential elections and is actively campaigning for him.
The Massachusetts senator had a surgery in October to unclog his carotid artery in the neck.