A 12-year-old Texas cheerleader died Monday, four days after suffering mysterious “life-threatening” injuries that her parents tried to treat with smoothies and vitamins, authorities announced Wednesday.

Jourdanton Junior High School student Miranda Sipps died in the hospital Monday night after her mother finally called for help when the minor began having trouble breathing, the Atascosa County Sheriff’s Office said.

The girl’s mother, Denise Balbaneda, and her stepfather, Gerald Gonzalez, 40, were arrested for failing to get medical help for the girl sooner during the four days she was “mentally and physically incapacitated and unresponsive,” the sheriff said.

The couple did not raise the alarm earlier because they did not want to draw attention to the girl’s condition, Sheriff David Soward said during a press conference – without giving details of Miranda’s injuries or their cause, according to reports.

Police encountered the mother on the road Monday night as she was en route to the hospital, and emergency medical services took Miranda to Methodist Hospital. Medical personnel treated Miranda “vigorously” but were unable to save her, the sheriff’s office said.

The sheriff’s office launched an investigation and detectives determined the teen suffered “serious, life-threatening” injuries Thursday night.

But the parents did not immediately call 911, “even though she was mentally and physically incapacitated and unresponsive,” according to the sheriff’s office.

According to law enforcement, Balbaneda only called for help when her child began to have difficulty breathing.

Before her death, the girl’s mother and stepfather reportedly gave her smoothies and vitamins, although she was unresponsive, Soward said, according to My San Antonio.

He also said the couple may have tried to give the girl oxygen at some point.

“Basically, they thought they could nurse her back to health, and we don’t think they wanted the attention that injuring the little girl would have brought,” he said.

“It’s strangely ironic, but that was their way of thinking.”

For four days, the girl was only able to “blink her eyes and move her hands a little,” the senior police officer added.

He also claimed that although the call for help came from her house, the mother left the house with the child before the police arrived because she did not want police officers in the house.

Soward did not provide details on how Sipps was injured, but noted that she suffered no broken bones.

Balbaneda and Gonzalez were arrested Tuesday and charged with aggravated assault of a child by omission, a first-degree felony.

The investigation is ongoing while authorities await the final autopsy report.