Obdulia Sanchez and the other unnamed teen escaped the crash with minor injuries, however Sanchez has been arrested on suspicious of driving under the influence and vehicle manslaughter.
Obdulia Sanchez, 18, was driving a 2003 Buick on Henry Miller Road and Highway 165 around 6:40 p.m. when the she overcorrected, drove off the road and overturned in a field, according to California Highway Patrol. Suspect's family says she was on Instagram Live during crash. Her sister, 14-year-old Jacqueline Sanchez, died at the scene, according to authorities.
"I f-- love my sister to death".
During the live recording Obdulia said: 'I killed my sister, but I don't care. I'm sorry baby. I'm a hold it down'.
The video has reportedly been pulled from social media sites, but still managed get lots of circulation around the internet.
California Highway Patrol Sgt. Darin Heredia told BuzzFeed News that officials were "well aware" of the video.
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Records show she is being held on a $300,000 (£230,000) bond following Friday's crash. I killed my sister, but I don't care.
She filmed herself at the wheel while her sister Jacqueline and a pal, 14, sat in the back on Friday, police said. Stockton resident Mary Hernandez said she saw the video there and reposted it.
Ms Sanchez Estrada, meanwhile, was sitting in the back of the auto without a seat belt and was killed when she was ejected from the vehicle.
After a gap in the livestream, the driver is seen standing over the body of the dead girl, saying she was sorry and it was the last thing she wanted to happen.
Family members started a GoFundMePage for Jacqueline's funeral expenses. They say the victim, Jacqueline, was supposed to celebrate her Quinceanera (15th birthday) Sunday.
Sanchez, who has more than 7,400 followers on Facebook and Instagram, is now incarcerated in the Merced County Jail and is facing charges of driving under the influence and gross vehicular manslaughter while intoxicated. I appreciate the time and love of all of your donations.