Friends Mourn 15-Year-Old Girl Apparently Fatally Struck by Car in Tarzana

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A make-shift memorial was growing in size Tuesday night as an investigation was underway into the death of a 15-year-old girl, who was identified after apparently being struck by a car -- possibly during a stunt -- in an isolated part of Tarzana.

Tsofia Mesica is shown in a photo provided by a friend.

Tsofia Mesica is shown in a photo provided by a friend.

Tsofia Mesica, a sophomore at Yeshiva University High School, was fatally injured in an incident in the 3500 block of Reseda Boulevard on Monday night.

Mesica, from Agoura Hills, was identified by the Los Angeles County Department of Medical Examiner-Coroner on Thursday.

The victim was part of a group of 10 to 15 teenagers who had gathered on top of a hill in the area the previous night, according to officials with the Los Angeles Police Department's Valley Traffic Division.

At about 9:15 p.m., officers responded to the location after receiving a report of a vehicle versus a female pedestrian, LAPD Officer Arriaga said.

When they arrived, officers learned the teenager had sustained significant injuries and had been taken to the hospital by friends.

Traffic investigators were working to determine what exactly occurred, but according to LAPD Detective William Bustos, the girl had been struck.

Earlier, Arriaga said witnesses gave two separate accounts of how she sustained the fatal injuries.

In one account, the female victim was holding on to the roof of a moving vehicle when she fell off, according to Arriaga. A male teen who was among those at the scene later in the day said she had possibly been "car surfing."

But another person told them the victim was leaning against the vehicle when the driver inadvertently hit the gas pedal instead of the brake, resulting in her being throw from it.

Friends gathered at the seen of a crash in Tarzana that killed a 15-year-old girl. (Credit: KTLA)

Friends gathered at the seen of a crash in Tarzana that killed a 15-year-old girl. (Credit: KTLA)

Bustos later stated that the girl had been struck, but did not provide any additional details. An investigation into the incident was ongoing.

He added that the victim was pronounced dead after being taken to the hospital.

Friends who gathered at the crash site Tuesday expressed disbelief.

"I was like, shocked, like, this can't happen," said friend Natalie Fadel.

Tsofia was described as having the "best personality," a "happy person" who was "always kind to people."

“She was that type of friend that you just like text with if you need help with anything," one teen girl said later that day.

Police have not made any arrests, and it was unknown if a crime had been committed, Bustos said. Investigators were trying to reach out to the teens who were at the scene to determine what occurred, the detective said.

KTLA's Irving Last, Melissa Pamer and Ashley Soley-Cerro contributed to this story.

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