A South African woman was scared to death on Monday — literally.

Nora Mazibuko, 68, was inside of a post office when a security guard's gun accidentally went off and the noise frightened her, causing her to collapse, Health24.com reports.

Mazibuko's daughter, Philisiwe Mazibuko, who was waiting outside, said her mother died immediately.

"I went inside soon after the sound and I found my mother lying down. She had stopped breathing; it happened so suddenly, I couldn't believe she was gone," she said.

The exact cause of her death had not been determined.

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