An inmate has died at the Jefferson County jail in Birmingham, Alabama, after being found hanging by a bed sheet.

The sheriff’s office told news outlets that the inmate was founding hanging in a work area on Thursday. Another inmate made the discovery.

Jail staff performed CPR on the inmate. Sheriff’s officials said the inmate had a faint pulse before medics rushed him to a local hospital but ultimately died.

A death investigation is ongoing.

Authorities did not release the inmate’s name.