A 14-year-old girl was killed after her sister lost control of the car she was driving, while livestreaming on Instagram. Jacqueline Sanchez was ejected from the vehicle when her 18-year-old sister Obdulia "veered onto the shoulder of a road" roughly 75 miles northwest of Fresno, Calif. on Friday, CBS Sacramento reported. Obdulia has since been arrested on suspicion of drunk driving and vehicular manslaughter. She will appear in court Wednesday.

The disturbing footage shows the driver posing and singing along to music before the footage cuts out briefly, then the driver is seen standing over a body. "This is the last thing I wanted to happen," she says, panning the phone to the body. According to California Highway Patrol, the driver was the only person in the car wearing a seatbelt. Authorities expect the footage to become a key piece of evidence in the investigation. The footage, excerpted in the video at the top of this page, was shared to Facebook after someone recorded the initial Instagram stream.

In an interview with ​KFSNNicandro Sanchez, Obdulia's father, said the car crash was an accident. "What I think is she knows she's done something wrong," Sanchez said. (At the time of his interview, he hadn't yet spoken with Obdulia post-accident.) "Because she knows, and that's what I feel. She feels bad for herself, but she killed her own sister." Obdulia, he added, had been in Child Protective Services' custody over the past two years.

Manuela Seja, who survived the crash, told local Fresno outlet KSEE that she didn't blame the driver for the girl's death. "It's all affected by social media," Seja, 14, said. "That's what life is now. And it's going to advance more and more. That's what it's going to be about."

In a statement to NBC News, an Instagram spokesperson said the company was "deeply saddened" by the incident. "We want to interrupt these streams as quickly as possible when they're reported to us, and we will also notify law enforcement if we see a threat that requires an immediate response," the spokesperson said. "We suggest people contact emergency services if they become aware of a situation where the authorities can help."