A teenager has sparked fury after uploading a video to social media that appeared to show her putting a pet guinea pig in the microwave.

16-year-old Vitoria Muller from Brazil had apparently filmed the clip after being encouraged to do so by friends.

The video went viral, leading to 'punicaoparavitoria' - 'punishment for Vitoria' - becoming a trending topic in Brazil, and Twitter users around the world called for the teen to face repercussions for her actions.