At least 10 inmates were injured in a fight Thursday at the Bayamon Regional Prison in the San Juan metropolitan area, Puerto Rican Department of Corrections spokeswoman Damarisse Martinez said.
The inmates were hurt in an incident inside Building 4 of the penitentiary, but the cause of the fight has not been determined, Martinez said.
Three of the injured prisoners were taken to the San Juan Medical Center, Martinez said, without providing details on their condition.
Established security protocols were followed and the situation was brought under control at the prison, the Department of Corrections spokeswoman said.
Guards used tear gas to restore order, Martinez said.
The situation is back to normal at the prison, North Region police director Col. Reinaldo Bermudez said.
An investigation is underway to determine what caused the incident, Bermudez said. EFE