From CBS Detroit:

The hunt is on for a group of men in Detroit who allegedly attacked two couples while they were walking down the street, forcing the male victim to watch as his female companion is gang raped.

The first incident unfolded around 11:30 p.m. Thursday in a well-lit area near McNichols Road and Birwood Street. The alleged attack happened in a northwest neighborhood just blocks away from Marygrove College.

According to police, a 22-year-old man and his 21-year-old girlfriend were walking along McNichols when they were approached by a group of six men. The men reportedly forced the couple behind a nearby business where they were robbed and stripped of their clothes.

The group then allegedly took turns sexually assaulting the woman. After the attack was over, the nude victims ran to a nearby liquor store for help.

Just hours later, at 2:40 a.m. Friday, another couple was attacked.

[…]

Anyone who might have information on the incident or the suspects is urged to contact police at 313-267-4600.