Police are investigating the death of a man who was booked into the Box Elder County jail on misdemeanor charges.

Thomas Jeffrey Johnston, 50, of Brigham City, was arrested Thursday on outstanding warrants for drug possession. According to the Box Elder County Sheriff’s Office, the jail staff was notified that Johnston “was experiencing detox symptoms” when he was booked. According to officials, he was housed in an observation cell for “continuous monitoring” and he received treatment for detox symptoms.

On Saturday at about 11 p.m., Johnston notified jail staff “that he could not urinate and didn’t feel well.” And “after a discussion” with the jail’s medical staff, he was taken to Brigham City Community Hospital, where he died about an hour later.

The Cache County Sheriff’s Office is investigating Johnston’s death.