The seven members of a Bali teenage motorcycle gang accused her of flirting with a gang member's boyfriend.
The all-girl gang allegedly took the victim, 15-year-old Kiki Ariani, to a secluded spot and assaulted her.
The attack was filmed by a gang member and posted on video-sharing website YouTube.
The 51/2-minute clip quickly went viral, Jakarta Globe reported.
Video of Bali girl gang hitting ex-member goes viral
