MINNEAPOLIS (WCCO) — A 21-year-old Minnesota National Guard member is accused of sexually assaulting a woman at a downtown Minneapolis night club last week.

The Hennepin County Attorney’s Office says Mainza Lombe Malambo, from Eagan, was charged Wednesday with third-degree criminal sexual conduct connected to an incident Saturday night.

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The criminal complaint says the female victim told police Malambo – a stranger to her — pinned her in a corner after she exited a bathroom on the rooftop level of the club Seven.

The victim says she resisted as Malambo kissed her mouth and neck, and then reached down her jeans and sexually assaulted her.

A bar security guard saw the encounter and asked the victim if she was OK, and she mouthed “no.” The guard told investigators that Malambo then turned his body and revealed that his genitals were out of his pants. The victim then ran away.

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The guard alerted an officer who was working at the bar, and Malambo was arrested as he tried to leave the building.

The Minnesota National Guard confirmed Wednesday that they are aware of Malambo’s arrest and his indictment. He is a member of Alpha Company 134th Brigade Support Battalion out of Arden Hills, and has the rank of private first class.

Malambo is being held at Hennepin County Jail. His first court appearance has not been set.

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He could face up to 15 years in prison if convicted.