A San Antonio woman has been sentenced to two years in prison for tearing her 6-year-old son's genitals during a rage and then trying to repair the wound using glue.

The sentence imposed Thursday for 34-year-old Jennifer Vargas includes five years of supervised release. She had pleaded guilty earlier to an assault charge.

An FBI complaint shows Vargas was arrested Sept. 27 at the family's home at Joint Base San Antonio-Fort Sam Houston. It's not clear why Vargas became so angry that she grabbed the boy's genitals.

The father came home later to find his son crying in his room, discovered the wound and took him to a military hospital. The child required surgery.

An emotional Vargas expressed regret in court Thursday for her actions.