Teens find bodies after mom kills 6-year-old daughter in apparent murder-suicide near Spring: HCSO

HARRIS COUNTY, Texas (KTRK) -- An investigation is underway after a 6-year-old girl was killed by her mother in an apparent murder-suicide near Spring, deputies say.

Deputies with the Harris County Sheriff's Office responded to an incident at the 1800 block of Vernal Glen Circle.

Investigators said the mother shot her 6-year-old daughter before turning the gun on herself Monday evening.

Authorities said the mother was alone with her daughter at the time of the shooting.

In the video above, ABC13's Daniela Hurtado talked with the woman's ex-husband who recalled the minute his son called him about the greusome discovery.

At the scene, Eyewitness News learned that two of her other children, a 13-year-old girl and a 16-year-old boy, discovered the bodies on Tuesday.

The oldest child, a junior in high school, called 911 and then his dad, who is the woman's ex-husband, asking to be picked up.

"Right now, I just don't know what's going to happen," the ex-husband said.

He told ABC13 that he is grateful his son is safe, but heartbroken for his son's half-siblings.

Editor's note: The original post stated the shooting happened in front of witnesses based off of initial information provided to ABC13.

WATCH: Sheriff Ed Gonzalez gives update after mom allegedly killed her daughter in front of 2 kids in apparent murder-suicide

Sheriff Ed Gonzalez gives an update after a mom allegedly killed her daughter in front of her other two kids in an apparent murder-suicide.