Darthmouth, Mass. (AP) — The Bristol County sheriff says former New England Patriots tight end Aaron Hernandez has been moved to a new cell block where he does not have one-on-one interaction with other inmates.

Sheriff Thomas Hodgson says Hernandez is alone in a cell. He was moved Monday after spending five days in a medical unit cell.

The 23-year-old Hernandez is being held without bail after pleading not guilty to a murder charge.

Hodgson tells The Herald News of Fall River that jail officials have completed their initial assessment to determine whether Hernandez has any gang affiliations, based in part on his tattoos, and have found none.

He says Hernandez has been a model inmate, but he is being watched closely because other inmates might want to "make a name for themselves."