*This is a developing story and will be updated as additional details become available.*

San Antonio authorities are investigating after the father of small children made a gruesome discovery Monday morning.

KENS 5 reports that the father of two children, ages 3 and 5, showed up at his ex-wife’s Sedona Ranch apartment off of Henderson Pass on Monday morning, and peered through the blinds after he couldn’t reach her by phone. He immediately called 911 after seeing a ghastly scene inside the apartment.

San Antonio Police Chief William McManus said that an unidentified 38-year-old woman shot her two children, her 68-year-old mother, and then herself after she lost a custody battle. The woman didn’t have a history of violence, according to her husband.

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“She recently lost custody. Very recently lost custody of the two children,” McManus said during a Monday press conference. “(She) killed both children, her mother and then herself.”

It’s still unclear what day the shootings took place. Authorities are still investigating the incident.

Check back for updates.

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[Feature Photo: Pixabay]