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An 11-year-old reportedly smeared blood on herself and went into "survival mode" during the Uvalde mass shooting on Tuesday, and her father tells Fox News Digital that the quick-thinking pre-teen is still shaken after having watched her teacher and classmates gunned down.

Miah Cerrillo, 11, survived the shooting but watched her friends and teacher being killed, according to her aunt, Blanca Rivera, who spoke with Click 2 Houston.

Cerrillo smeared blood on her face and went into survival mode after seeing her classmates shot to death, according to the report.

"My sister-in-law said is that [Miah] saw her friend full of blood, and she got blood and put it on herself," Rivera said. "My brother said she had bullet fragments in her back."

TEXAS SCHOOL SHOOTING: LIVE UPDATES

Texas school shooting police officer lights candle

A law enforcement personnel lights a candle outside Robb Elementary School in Uvalde, Texas, Wednesday, May 25, 2022. Desperation turned to heart-wrenching sorrow for families of grade schoolers killed after an 18-year-old gunman barricaded himself in their Texas classroom and began shooting, killing several fourth-graders and their teachers.  (AP Photo/Jae C. Hong)

The 11-year-old had seemed to be okay until Tuesday night when she got home, and then had a panic attack.

"Around midnight, my sister-in-law called me and she was just crying like, ‘I think it just hit Miah. I think everything came to reality. We’re home, and she’s just crying and having a panic attack," Rivera said.

Miguel Cerrillo, the 11-year-old's father, told Fox News Digital that she is still "freaking out" about what happened on Tuesday.

He added that she is out of the hospital but is not sleeping well.

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texas school shooting mourners

A woman cries as she leaves the Uvalde Civic Center, Tuesday May 24, 2022, in Uvalde, Texas An 18-year-old gunman opened fire Tuesday at a Texas elementary school, killing multiple children and a teacher and wounding others, Gov. Greg Abbott said, and the gunman was dead.  (William Luther/The San Antonio Express-News via AP)

Salvador Ramos, the alleged gunman, killed 19 students and two teachers during the shooting inside Robb Elementary School in Uvalde, Texas.

A 9-year-old student told KENS 5 that the shooter said "it's time to die" after entering the classroom.

UVALDE, TEXAS SCHOOL SHOOTING: TIMELINE OF MASSACRE THAT LEFT AT LEAST 19 CHILDREN, 2 TEACHERS DEAD

Texas school shooting mourner

Joseph Avila, left, prays while holding flowers honoring the victims killed in Tuesday's shooting at Robb Elementary School in Uvalde, Texas, Wednesday, May 25, 2022. Desperation turned to heart-wrenching sorrow for families of grade schoolers killed after an 18-year-old gunman barricaded himself in their Texas classroom and began shooting, killing at least 19 fourth-graders and their two teachers.  (AP Photo/Jae C. Hong)

"He shot the next person’s door. We have a door in the middle. He opened it. He came in and he crouched a little bit and he said, 'It's time to die,'" the student told the station. "When he shot, it was very loud and it hurt my ear." 

Before entering the school, Ramos allegedly shot his grandmother in the face and sent messages stating "I’m going to shoot my grandmother," "I’ve shot my grandmother," and "I’m going to shoot an elementary school."

University Health hospital in San Antonio, Texas, said on Thursday morning that a 66-year-old woman, who's presumed to be his grandmother, is in serious condition.

Fox News' Matteo Cina, Paul Best, Stephanie Pagones, and Ashley Papa contributed to this report.