Russian police probe video of officer beating woman

The interior ministry said it opened an internal enquiry into the case, promising that 'those who are guilty will have to face responsibility'

Russia's interior ministry opened an investigation Monday after a video showing a riot policeman punching a woman in the stomach during a protest for free elections went viral.

The video, which has more than 360,000 views, shows a young woman dragged by four masked policemen in riot gear, with one of them punching her in the stomach for no apparent reason. The images provoked outrage in the media and on social networks.