A Temecula girl injured last week during a brawl has died after being taken off life support, authorities said Monday.

Paola Montufar, 15, was pronounced dead at 12:20 p.m. Saturday at Rady Children's Hospital San Diego, a spokesman for the San Diego County medical examiner's office said.

Her body has been returned to Riverside County and an autopsy is scheduled today, said Sgt. Dennis Gutierrez, spokesman for the county sheriff-coroner's office.

Paola had been on life support since being hospitalized after getting caught in the middle of a brawl Feb. 12 at Wabash and Cupeno lanes in Temecula.

Temecula police have said Paola was punched by a 17-year-old girl when she tried to intervene during a fight involving Paola's boyfriend and a former boyfriend. The Great Oak High School student possibly hit her head on a curb when she fell to the ground after being hit, police said.

When officers arrived, the girl was unconscious. Officers administered CPR until paramedics got there.

While the 10 or so young people at the fight have been identified and interviewed - including the teen who reportedly threw the punch - no arrests have been made, police said.

"Now, we need to wait and see what the cause of death was," Temecula Police Chief Jerry Williams said Monday.

Because of the girl's grave condition immediately after the fight, homicide investigators were called to the scene.

After police complete their investigation, they will determine whether to ask the district attorney's office to file charges in connection with the girl's death.

Last week, before Paolo's death, a family member confirmed the girl had a heart problem.

Paolo and her family moved to Temecula from National City last summer, the family member also said.

"She's not one of those girls that goes looking for a fight," the relative said last week.

- Contact staff writer John Hall at (951) 676-4315, Ext. 2628, or jhall@californian.com.