DETROIT -

A 24-year-old woman died Sunday when she hugged an off-duty Detroit police officer, causing a holstered weapon to go off - striking her in the chest.

Adaisha Miller was in the 1200 block of Archdale celebrating her upcoming 25th birthday when, police said, the gun accidentally went off.

Police said the gun discharged while Miller was dancing with the officer and embraced the officer from behind.

Miller was struck in the lung and heart. She died at an area hospital.

"For this to happen to her, whether they want to call it freak accident or mistake in judgment, it should have never happened to my child and there's nothing I can do to get her back," said Adaisha's mother, Yolanda McNair.

Miller would have turned 25 on Monday.

"All she wanted to do was enjoy the weekend for her birthday. She had every right to enjoy turning 25 and look beyond that," said McNair.

Internal Affairs for the Detroit Police Department is conducting an investigation. The investigators report will presented to the Wayne County Prosecutor's Office for review.

The officer will be assigned to administrative duties throughout the investigation.