Both of the girl's parents thought the other had removed her from the car, police said
Credit: KTRK/ABC

A 9-month-old Texas girl was killed Monday when her parents allegedly left her unattended in a hot pickup truck, PEOPLE confirms.

A spokeswoman from the Harris County Sheriff’s Office tells PEOPLE that sometime after 11 a.m., the baby, Maria, returned to her Baytown home in the car with her parents and two siblings.

About an hour later, the parents, who hadn’t seen Maria, searched for her and found her unresponsive inside the family’s truck, says the spokeswoman. According to the spokeswoman, both parents thought the other had removed her from the vehicle.

At about 2:30, authorities responded to a call about the girl at the family’s house, says the spokeswoman. Maria was taken to the hospital where she died.

ABC News reports Monday’s temperature in Baytown went up to 91 degrees with a heat index of 100.

• Want to keep up with the latest crime coverage? Click here to get breaking crime news, ongoing trial coverage and details of intriguing unsolved cases in the True Crime Newsletter.

No charges have been filed, the spokeswoman says.

After the girl’s death, Harris County Sheriff Ed Gonzalez tweeted, “I hate this. These deaths are preventable.”

It was the scandal that rocked America’s most storied political family and changed the course of presidential history. PEOPLE‘s first-ever podcast, Cover-Up, dives into the Chappaquiddick scandal and attempts to piece together what happened in the hours after Ted Kennedy’s car went over a narrow wooden bridge, killing his passenger, Mary Jo Kopechne. Subscribe now on Apple Podcasts, Spotify, Google Play or wherever podcasts are available.

At a news conference, Gonzalez said the family had been going to medical appointments before returning home.

“In the hustle and bustle of getting kids out and attending to other things, they apparently forgot that the 9-month-old had been left inside the vehicle,” he said.