Three teenage girls returned to their northwest Harris County home Tuesday to find their mother dead, according to the Harris County Sheriff's Office.

The mother, around the age of 34, was found with a gunshot wound inside her residence in the 13900 block Chuckwood, according to deputies.

The girls had come home from school around 3:30 pm.

Homicide investigators have been called to the scene.

No word yet on any possible suspects or a motive.

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