More fighting broke out between inmates at the Nicosia central prison on Saturday, making it the second day in a row of escalating violence behind bars.
Conflicting reports said three to four inmates were injured as a result of the fighting, which broke out in wings one and two.
The reason was not immediately clear however conditions at the central prisons have long been cause for concern.
A day earlier, a fight broke out in the prison kitchens after inmates complained about the quality of their food.