A prison inmate is being treated for stab wounds he suffered during a fight among three prisoners at the medium-security Maryland Correctional Training Center near Hagerstown on Monday night, a spokesman for the prison system said.

Mark Vernarelli said the 32-year-old man from Frederick County was injured in an altercation outside of his cell at about 8:30 p.m., and officers "quickly controlled the situation." The prisoner — serving 10 years and six months for four convictions on second-degree assault and burglary — was flown to the Maryland Shock Trauma Center, where he was being treated for several puncture wounds.

The injuries did not appear to be life-threatening, Vernarelli said. The other two men were treated at the prison for minor injuries. Vernarelli said this "appears to be an isolated incident and I am not aware of any gang issues," but investigators at the prison will review the incident. Officers recovered three weapons used in the fight.

Housing about 2,550 men, the prison south of Hagerstown is one of three state prisons in that area and one of more than 20 across Maryland.