Amanda Kristine Hawkins took her children to the hospital Wednesday claiming they had fainted while running around and smelling flowers at Flat Rock Lake and may have gotten into something poisonous.

Kerrville, Texas - Kerr County investigators later determined the toddlers were left in the car intentionally overnight Tuesday and through the morning until about noon the next day.

The toddlers Brynn Hawkins, 1, and Addyson Overgard-Eddy, 2 were in critical condition and transferred to University Hospital in San Antonio where they later died at 5 pm.

Amanda and a 16-year-old male friend were inside another friend's home. According to abc7.com "Kerr County Sheriff Rusty Hierholzer said that at some point the 16-year-old went out to the car and slept for a while but then went back inside the house."

People in the residents reported hearing the cries from the girls but Hawkins did not go out to check on them. The girls were without restroom visits and food during the 15 hours in the car.

Hawkins did not immediately rush the children to the hospital instead she bathed and redressed the unconscious girls because she feared she would be in trouble.

According to Fox San Antonio, "Hawkins was charged with two counts of child endangerment, but Hierholzer said the charges could be upgraded after the findings of the case are presented to a grand jury. She was taken to the Bexar County Jail following her arrest and will remain there until her transfer back to Kerr County. Her bond was set at $35,000 for each charge. Sheriff Hierholzer said the 16-year-old who was with Hawkins may also face charges."