HOUSTON (CBSDFW.COM/AP) — A 26-year-old Houston woman who was driving an SUV toward her children in an apparent game of “chicken” struck and killed her 3-year-old son, authorities say.

Harris County prosecutors said Friday that Lexus Stagg is charged with criminally negligent homicide in the June 11 death of her son.

Lexus Stagg mugshot (Credit: KTRK)

They say surveillance video from an apartment complex shows Stagg getting into a Lincoln Navigator, then backing up. As her three young children began running after her, she drove the SUV forward. Two children moved out of the way, but the 3-year-old was caught under a tire.

District Attorney Kim Ogg said, “Cars aren’t toys and playing chicken with your kids isn’t a game.”

Stagg was booked into the Harris County jail but was no longer being held Saturday.

Child Protective Services told Houston station KTRK that two of Stagg’s older children were removed from her in 2013. According to KTRK, Stagg then had three more children. The other two children involved in the June 11 incident are with relatives.

It’s not clear whether she has an attorney to speak on her behalf.

(© Copyright 2019 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)