A 30-year-old woman was gangraped in Sweden by three men who livestreamed the video of the heinous crime.
Members of a Facebook group saw the live video of the gangrape and alerted the police after which three suspects aged 18, 20 and 24, were arrested early Sunday in an apartment in Uppsala, 70 kilometres north of Stockholm, in the presence of the victim.
The film has been removed from Facebook but it has been circulated on the internet. Swedish media have published excerpts of the footage, showing at least one of the suspects holding a revolver.
Josefine Lundgren, one of the first to call authorities, told daily Expressen that the 24-year-old suspect, a repeat offender considered by police to be the main attacker, "tore the clothes off" his victim before raping her.
She also revealed that the attacker also "had apparently filmed everything and took pictures that he put on messaging site Snapchat”.
The investigators have appealed to social media users who had images of the attack to turn them over to police.
"We have some picture and video material. But we don't have any images showing the attack itself," Uppsala deputy chief prosecutor Magnus Berggren said on Monday.
Facebook has denounced the crime and added that it is always on alert to review content that is being reported by users.
It also said that Facebook cooperates systematically with police in criminal investigations.
