By Bud Gillett, CBS 11 News

ARLINGTON (CBSDFW.COM) – Police are trying to find the person responsible for the death of a 15-year-old girl who was hit by a vehicle while attempting to cross the street.

The incident happened just after 9 p.m. Monday in the 3000 block of South Cooper Street, near Mayfield Road.

The Tarrant County Medical Examiner’s Office has identified the teenager as Jennifer Herring. Police said Herring and her boyfriend were trying to walk across the street near her home when a vehicle hit her and then fled the scene.

“She was transported to an area hospital where she later died,” said Oz Flores, with the Arlington Police Department. “The vehicle did not stop and render aid.”

Flores said her boyfriend was “well ahead of” Herring and had already crossed the street when she was hit.

“Once that individual got to the other side, he turned around and looked and did not see her there and at that point noticed she was laying on the ground,” Flores said.

The boyfriend is cooperating with police, however Flores said investigators still do not know the make or model of the car that killed the 15-year-old.

Herring’s parents showed pictures of a girl who loved animals and who won awards for riding, even though she didn’t get a horse of her own until this month. She planned to begin barrel racing lessons this weekend and held out long-term hopes of becoming a veterinarian.

According to the Arlington Independent School District, Herring was a sophomore at Bowie High School. Administrators said she excelled in creative writing and photographer.

School counselors and staff will be available on Tuesday to help students cope with the tragedy.

“It’s very somber,” said Arlington ISD communications director Leslie Johnston. “All her teachers say she was a unique and independent student and was well-liked by everyone on campus.”

Meanwhile, Arlington police are trying to find the driver responsible for Herring’s death, and would like help from any possible eyewitnesses.

“We certainly are reaching out to the public for any passerby’s who may have seen something, or anyone who was walking by who may have witnessed it, to provide us some information,” Flores said.

Flores asks anyone who may have witnessed the incident or have any information that may help authorities with the case to call Arlington police.

“I know that the students are upset, of course, over the loss, and they’re working through that with the counselors on-site,” Johnston said.

This marks the 10th traffic fatality in Arlington so far this year.