LAKEWOOD CREST, Fla. -- Sen. Marco Rubio’s 12-year-old daughter, Amanda, was involved in a golf cart accident Saturday in Miami while the GOP senator was campaigning elsewhere in Florida with Republican presidential candidate Mitt Romney.

Sen. Marco Rubio (R-Fla.), who is traveling with Republican presidential candidate Mitt Romney, talks on the phone as he stands alongside Interstate 4 in Lakewood Crest, Fla., Saturday, Oct. 27, 2012 after the motorcade was stopped. (Charles Dharapak -- Associated Press)

About 6:55 p.m. Friday, Romney’s campaign bus pulled off on the side of Interstate 4 here between stops in Kissimmee and Land O’Lakes to drop off Rubio, who left in a police car to fly to Miami to see her.

Amanda, the oldest of Rubio’s four children, is in stable condition at Miami Children’s Hospital, according to Alex Conant, a spokesman for Rubio. Rubio was told of the accident after coming off stage at an afternoon campaign rally in Kissimmee, he said.

In a statement later Saturday, Conant said: "While visiting with classmates, she was a passenger on a golf cart involved in a collision in a private gated community. She was airlifted to Miami Children’s Hospital with a head injury. She has been admitted to the Pediatric Intensive Care Unit. She is in fair condition."

"Senator and Mrs. Rubio are grateful for all the outpouring of support and prayers,” he added, including calls from President Barack Obama and Vice President Joe Biden and a personal message from Romney.

In a statement, Romney spokeswoman Andrea Saul said: "Governor Romney spoke with Senator Rubio and expressed his concern and hope for Amanda Rubio's quick recovery."

Rubio has been traveling with Romney all day. They campaigned together Saturday morning in Pensacola, then Rubio flew on Romney's chartered jet to Orlando, where they boarded Romney's campaign bus to drive to a rally in nearby Kissimmee and then on to Land O'Lakes, near Tampa. The two were photographed watching a college football game aboard the campaign bus.