(KRON) -- A 31-year-old Napa mother, Yesica Barajas, is accused of killing her own children in a DUI crash. During Barajas' court appearance on Friday, a Napa County Superior Court judge denied the mother's request to be briefly released from jail so that she could attend a funeral for her 9-year-ol d daughter and 10-year-old son. Aaliyah Montanez, 9, and her brother, Damian Montanez, suffered fatal injuries when their mother’s car crashed along Highway 29 on Sunday, March 16, at 7:30 a.m. The siblings died in the backseat of Barajas' mangled vehicle. California Highway Patrol officers said when they arrived on scene, the mother was trapped inside her car. Aaliyah Montanez (Family photo) One CHP officer said he smelled a strong odor of marijuana emanating from the mother's breath and she was confused, court documents obtained by KRON4 state. Barajas was seated in the driver's seat and she was the only person alive inside the car. When the officer later questioned the mother in a hospital, she admitted to drinking alcohol at home before driving on the morning of March 16, court documents state. Barajas also admitted to using marijuana daily to calm her nerves, the CHP officer wrote. Investigators found a vape pen with marijuana cartridges inside the car, according to court documents. Damian Montanez and his sister, 9-year-old Aaliyah Montanez, are seen during a trip to Lake Tahoe. (Image via GoFundMe) Barajas spent days in a hospital before she was booked into jail. Prosecutors charged the mother two felony counts of gross vehicular manslaughter while intoxicated -- one count for each of her deceased children. Prosecutors also charged Barajas with child abuse, and driving under the influence of alcohol and a drug. On Friday, "Judge Scott Young denied the defendant’s motion to be released from jail to attend the funeral service," a Napa County District Attorney's spokesperson told KRON4. Crash victim Damian Montanez (Photo via GoFundMe) A family friend created a GoFundMe page to raise donations for Aaliyah and Damian's funeral. The siblings went to school in the Napa Valley Unified School District.  The children loved camping with their grandparents in Lake Tahoe. Photographs from one of their camping trips show the siblings smiling and playing in Lake Tahoe’s blue waters. "Damian and Aaliyah always had a smile on their faces," the family friend said. Damian Montanez and Aaliyah Montanez are seen in a family photo. Leading up to the tragedy, Barajas had full legal custody of her two children. Damian and Aaliyah’s mother and father were previously involved in a lengthy child custody battle through family courts. After thousands of dollars poured into the GoFundMe page, the family friend wrote, "The Montanez-Rincon family is overwhelmed and grateful for the love and support they have received. These donations will be used for Damian and Aaliyah’s funeral expenses and to honor and maintain their memory." Yesica Barajas is seen in a mugshot after a crash that killed her two children. The mother remains behind bars with bail set at $500,000. She has not entered a plea. Barajas' next court appearance is scheduled for April 22. ...read more read less