- The footage is believed to have been shot in Brazil between 2014 and 2015
- Investigation launched after prosecutors obtained the clips earlier this week
- One prosecutor said the footage represents ‘chaos installed in the prison system’
Brazilian prosecutors have opened an investigation into three prisons after guards were allegedly filmed torturing inmates.
Several guards can be seen repeatedly using stun guns on inmates who were already under control in the footage shot in Goias state.
The clips are believed have been captured between 2014 and 2015 but was only obtained by prosecutors this week.
A prison guard uses a stun gun to deliver a shock to an inmates rear in one of the clips
![Several guards can be seen repeatedly using stun guns on inmates who were already under control in the footage](https://i.dailymail.co.uk/i/pix/2017/12/01/15/46E0D61100000578-5136665-image-a-26_1512140974131.jpg)
Several guards can be seen repeatedly using stun guns on inmates who were already under control in the footage
In one video, prison agents can be seen forcing a prisoner to stand up before using a stun gun to deliver a shock to his rear.
And in another, guards can be seen filming each other as they give an electric shock to an inmate sleeping in a hammock inside a cell.
The footage was brought to the attention of the authorities by another guard who was present during the incidents but did not agree with his colleagues’ actions, according to Brazilian newspaper O Globo.
![Guards use a stun gun on a prisoner sleeping in a cell hammock, causing him to fall out](https://i.dailymail.co.uk/i/pix/2017/12/01/15/46E0D5EE00000578-5136665-image-a-35_1512141154205.jpg)
![Guards use a stun gun on a prisoner sleeping in a cell hammock, causing him to fall out](https://i.dailymail.co.uk/i/pix/2017/12/01/15/46E0D5E900000578-5136665-image-m-34_1512141150427.jpg)
Guards use a stun gun on a prisoner sleeping in a cell hammock, causing him to fall out
![A prisoner sits on the ground as a prison officer points a weapon at him in the clip](https://i.dailymail.co.uk/i/pix/2017/12/01/15/46E0D5E200000578-5136665-image-a-29_1512141072586.jpg)
A prisoner sits on the ground as a prison officer points a weapon at him in the clip
![Two guards have reportedly been removed from their positions and all other prison agents visible in the footage are under investigation, prosecutors said](https://i.dailymail.co.uk/i/pix/2017/12/01/15/46E0D59A00000578-5136665-image-a-28_1512141027610.jpg)
Two guards have reportedly been removed from their positions and all other prison agents visible in the footage are under investigation, prosecutors said
Two guards have reportedly been removed from their positions and all other prison agents visible in the footage are under investigation, prosecutors said.
Goias state prosecutor Luciano Miranda called it ‘evidence of the chaos installed in the prison system’.
Violence is rife in Brazil’s overcrowded prison system. Earlier this year several prison riots left dozens of inmates dead.