A 16-year-old girl was drugged and raped repeatedly by partygoers at a weekend rave near Vancouver as onlookers snapped photos that have since found their way onto Facebook, the RCMP said Thursday.

The attack happened at a rave last Friday night on a rural property near Pitt Meadows, east of Vancouver. Police believe the girl was given a substance commonly know as the date-rape drug...

...Insp. Lench said the girl was drugged and, while she was conscious at the time, she didn't remember what happened to her until several days later. She came forward to police once she discovered the photos on Facebook.

He described the assault as "violent," leaving the girl with undisclosed injuries.