Jailed former NFL star Aaron Hernandez was involved in a fight with another inmate, officials said.
The incident reportedly happened in a common area at the Bristol County House of Correction in Dartmouth, Mass, where the onetime New England Patriots tight end is being held without bail after pleading not guilty to a murder charge in the death of 27-year-old Odin Lloyd.
Hernandez, who is kept alone in a cell, and the other inmate were apparently involved in an altercation despite the fact that only one prisoner is supposed to be in that area at a time, officials said.
"An altercation took place between two inmates, and one of them was Aaron Hernandez,'' Bristol County Sheriff Tom Hodgson told ABC News. "We will be studying video and proceeding with interviews to determine why and how the incident took place to determine whether internal discipline or criminal charges are warranted."
Hodgson said the fight was stopped very quickly, "within seconds, maybe a minute." Neither man was seriously injured, officials said.
The other inmate's name has not been released.