Three brothers have been charged in a vicious gang sexual assault in a downtown Toronto parking garage on the weekend.

Police said a 22-year old woman was leaving a nightclub near Richmond Street and Spadina Avenue, in the entertainment district, when she accepted a ride offer from a man she had met earlier in the evening.

Together with two other men, he then allegedly took her in an SUV to an underground parking garage near Blue Jays Way and Windsor Street where two of the three sexually assaulted the woman, police said.

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Friends of the woman quickly alerted police after she left the club and she was rescued when she was discovered in the parking lot with the three brothers, who were arrested at the scene.

Hewad Ahmadzai, 26, Omeed Ahmadzai, 24, and Nazeef Ahmadzai, 30, have all been charged with forcible confinement and gang sexual assault.

Police suspect there may be other victims and have released photos of the accused.

Anyone with information is asked to call detectives at 416-808-7474 or leave a tip with Crime Stoppers 416-222-8477.