The fight was reportedly between Hernandez and another inmate at the Souza-Baranowski Correctional Center in Shirley, Mass., but no one was injured.
Hernandez, 25, was convicted in April of murdering semi-pro football player Odin Lloyd, who was dating his fiancee's sister. He was sentenced to life in prison for the June 2013 killing without the possibility of parole, and is appealing the sentence.
He has also been charged with two counts of first-degree murder for shooting two men in July 2012 after an altercation at a Boston night club, and is expected to go to trial later this year.
- Erin Flynn