Warning: Distressing content
US authorities are investigating after a disturbing video of a woman beating a dog went viral on Twitter, prompting a wave of outrage.
The video, believed to have been filmed in Boise, Idaho, shows a woman wearing boxing gloves punching a german shepherd hard in the face.
As a man films, the woman hits the dog multiple times over the 13-second clip as the man says: "We're boxing animals".
![The woman wore boxing gloves as she beat the dog. Photo / Twitter](https://www.nzherald.co.nz/resizer/v2/25ZR6YN7DIZ57P2NJFRGS2OVHQ.jpg?auth=5c83d53113abf68fd0f33accb765823ab97ef363915c8cbf976471a0d99399b5&width=16&height=24&quality=70&smart=true)