An 18-year-old woman has been arrested on suspicion of causing a deadly crash which she live streamed on Instagram.
It ends with her kneeling next to her dead 14-year-old sister and saying: "Wake up baby, I'm f**king sorry baby, I did not mean to kill you sweetie."
The California Highway Patrol said Sanchez was driving the car when it veered onto the right shoulder of a road about 120 miles southeast of San Francisco.
She over-corrected, causing the vehicle to swerve across lanes, crash through a wire fence and overturn into a field.
Sanchez was booked into the Merced County Jail on suspicion of DUI and vehicular manslaughter after the crash killed her 14-year-old sister, Jacqueline Sanchez, and badly injured another 14-year-old girl.
The Instagram live video begins with Sanchez driving while singing along to music and making signs with her hands, before the camera goes blurry and red as screaming can be heard.
"If I go to f**king jail for life, you already know why," Sanchez says after the crash. "My sister is f**king dying. Look, I f**king love my sister to death. I don't give a f**k."
She adds: "Man, we about to die. This is the last thing I wanted to happen to us but it just did."
"I f**king killed my sister, OK? I know I'm going to jail for life. I understand that. This is the last thing I wanted to happen. I don't f**king care at all. I'm a hold it down."
The California Highway Patrol is examining the video as part of its investigation into the crash.
Family members have set up a GoFundMe page to pay for Jacqueline Sanchez's funeral expenses.
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