An MTA security guard shot and killed herself inside a Brooklyn subway station Saturday, police said.
The 53-year-old female guard was working at the Flatbush Ave.-Brooklyn College station when she entered a staff bathroom around 1 p.m. and took her own life using her service weapon.
The woman, who was not identified by police, shot herself in the head.
She was assigned to guard workers in the MetroCard kiosks at the Flatbush station.
The incident is being investigated, but police said there's "nothing to indicate" the shooting wasn't a suicide.
A call to the MTA was not returned.
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