Authorities say a 43-year-old inmate has been fatally stabbed inside a Maryland prison.

Maryland State Police said in a statement that corrections officers found John A. O'Sullivan lying on the floor and bleeding Sunday morning after a fight inside Jessup Correctional Institution in Anne Arundel County.

Police say O'Sullivan died at the prison.

Multiple prisoners were taken into custody, but no charges had been filed as of Sunday night.

The Baltimore Sun (http://bsun.md/2bhi3AB ) reports O'Sullivan is at least the second inmate to have been killed inside the prison this year.