ERIE, Pa. (AP) — Two girls, ages 10 and 11, are being held in an Erie County juvenile detention center because police say they brutally attacked another little girl and broke her hip.

"They started stomping on my head and legs," she said from her hospital bed at Hamot Medical Center. "I couldn't do anything."

Rikki said she and her sister, Nikki, 8, were at the playground when two girls approached. One splashed Nikki with a cup of water.
"'Leave her alone,'" Rikki said she told the girls from her perch on the monkey bars.
She said the girls then turned their attention to her. They splashed her with water, she said, then pulled her from the monkey bars. Once she was on the ground, Rikki said, the girls kicked her in the head and stomped on her.
Adults, apparently passers-by, approached. The girls retreated, leaving Rikki helpless on the ground.

Excerpt from goerie.com (link woudn't 'stick' here for some reason... above should work)
But he said he believes the girl, who is accused of conspiring with an 11-year-old to assault 10-year-old Rikki Triana, "is too emotionally young to know what is going on" in the criminal case against her, which would be tried in Juvenile Court.

The girls face charges of aggravated assault, simple assault and conspiracy. Erie police accused them of breaking Rikki's right hip by stomping on her at the Pfeiffer-Burleigh playground, at East 12th and Holland streets, at about 7 p.m. April 3.

Rikki Triana, the victim, a newly enrolled student at Pfeiffer-Burleigh, was treated initially at Hamot Medical Center, where surgeons inserted three pins to repair her shattered right hip.

Rikki was transported by ambulance Wednesday from Hamot to Erie Shriners Hospital for Children, where she will continue to undergo rehabilitation on her broken hip. Doctors have told the family that Rikki likely will be at Shriners for at least a week while she undergoes intense therapy.