The department tweeted that it concluded its administrative investigation into the Jan. 7 death of Tyre Nichols, 29, who was stopped by police for alleged reckless driving.

During the encounter with officers, Nichols allegedly ran away when approached, causing the officers to pursue Nichols and ultimately apprehend him, police said. Nichols was hospitalized in critical condition after complaining of shortness of breath during the arrest and died three days later, police allege. Nichols' cause of death has yet to be released.