MINNEAPOLIS (WCCO) — The Metro Transit Police Department says three teenagers were arrested on Wednesday in connection to a recent assault on a light rail train platform. Law enforcement was notified of the incident after a video of the crime was posted on Instagram on Tuesday.

That disturbing video showed a woman being kicked in the face by a hooded suspect.

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According to law enforcement, the incident happened shortly after midnight on Monday morning.

Soon after investigators were on the case and able to develop significant leads by Tuesday.

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Authorities had said the victim did not file a police report, and they had not been able to make contact with her.

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The case is now being referred to the Ramsey County Attorney’s Office for formal charges. The county attorney will also work to determine the motive behind the crime, if any.

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WCCO does not name suspects until they have been formally charged with a crime.