Colorado Springs Police Department is investigating a shooting in which a 3-year-old boy accidentally shot his 2-year-old brother.

The shooting happened inside a home in the 4300 block of Driftwood Drive Saturday afternoon.

The two boys lived at the home with their older sister, their mother and her roommate. The family was in the process of moving, which may have been why the gun was out and not secured, according to police.

The boy was playing with a handgun when it fired and struck his brother. The kids' mother was home at the time of the incident.

Police tell our Colorado Springs news affiliate, KOAA, the child who was shot is in critical condition but stable at a nearby hospital.

A 30-year-old woman, identified as Monica Abeyta, has been arrested in connection with the shooting.

She faces charges for child abuse resulting in serious bodily injury.