A woman ran over two teenage brothers after they accidentally hit her sport utility vehicle with a golf ball they were bouncing in a parking lot, officials said. One of the boys suffered life-threatening injuries.

The 14- and 16-year-old boys were bouncing the golf ball in a shopping center parking lot Sunday afternoon when it went astray and struck the SUV driven by 47-year-old Kathy Feaganes Allen (search), sheriff's Deputy Greg Suchy said.

No damage was done, and the boys apologized and began to walk away, Suchy said. Allen started to drive away, but suddenly made a U-turn, ran over a median and struck the teens before knocking over a light pole, Suchy said.

She then allegedly went after a third brother, but did not hit him. A witness said that after the SUV came to rest, Allen got out of the car and smoked a cigarette with the boys lying on the ground in pain.

"She charged them. This was the most deliberate act," witness Russell McPhee said. "After she ran them down, she got out of the car and lit a cigarette like a movie star."

Isiah Grayer, 14, was in critical condition Monday. His 16-year-old stepbrother, Justin Marshman, was treated for non-life threatening injuries.

A judge ordered Allen held without bail Monday on three counts of attempted murder. She is being represented by the St. Johns County Public Defender's Office, which did not immediately return a call seeking comment.