Former first lady Lady Bird Johnson has been hospitalized and is undergoing medical tests, but is awake and receiving visits from family members and friends, a family spokesman said Friday.

Johnson, 94, who has suffered a stroke in the past, did not suffer a stroke this time, said longtime family friend Neal Spelce. He did not disclose the symptoms that led to her admission to Seton Medical Center. He said her doctors are running tests.

One of her two daughters, Luci Baines Johnson of Austin, is with her. Daughter Lynda Johnson Robb was expected to arrive in Austin Friday night, Spelce said. Her husband, Lyndon Baines Johnson, died in 1973.

"Mrs. Johnson is resting comfortably and is awake and lucid," Spelce said. "Her family is with her. ... I had a nice little visit with her."

He said there are no planned news briefings at the hospital.

It is not known when Johnson might be released, Spelce said.

Johnson was hospitalized with a stroke in 2002, and it left her with difficulty speaking. But she has continued to make public appearances and last month appeared at an event at the LBJ Library and Museum featuring historian Robert Dallek.