Updated

A Utah woman was arrested Thursday after she allegedly locked her two children in the trunk of her car while she went shopping at Walmart.

Tori Castillo, 39, faces four counts of child abuse with physical injury and one count of theft, Fox 13 reported. Two women told police they were in the Walmart parking lot in Riverdale when they heard the children's voices coming from the car.

"I could hear some kids crying," the woman recounted to Fox 13.

"I turned to my friend and I'm like, 'There's people in this trunk. There's kids in this trunk!'"

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"I started talking to the little girl that I could hear screaming," she said. "She was [yelling], 'Mom, let me out! Let me out! Mom! Help!" She was screaming, crying."

Four people worked to rescue the children as they yelled for help. One of the women guided the children to the emergency latch inside the trunk. Eventually, it popped open.

"Both kids just came out... they just jumped out at us," the woman told the station. "One lady took the 2-year-old, I took the 5-year-old."

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Castillo eventually returned to the parking lot and reportedly told the women the reason for locking her children in the trunk was because the "babysitter didn't show up."

A witness later said she saw Castillo lock her children in the trunk of the car before walking into the store.

The children were handed over to a "responsible party," the Division of Child and Family Services said.

Click here for more from Fox 13.