Andrea Nicole Jennings, 23, has been charged with injury to a child, along with other unrelated outstanding warrants.
Officials with the Grand Prairie Police Department told officials with the Mansfield Police Department around 10:30 p.m. on Wednesday that they were investigating a case regarding suspicious injuries to a 3-year-old boy.
Grand Prairie EMS officials took the boy from a Grand Prairie motel to an Arlington hospital. There, the boy was pronounced dead just after 11 p.m.
Originally, police believed that the incident leading to the boy's death took place in Grand Prairie. However, police later learned that incident took place at Jennings' home in the 1600 block of East Debbie Lane in Mansfield.
The boy's identity has not been released, but police said Jennings is an acquaintance of the boy's mother.