MEMPHIS, Tenn. — Seven more police employees — who have not been identified — are under investigation in relation to the death of Tyre Nichols, city attorney Jennifer Sink said Tuesday.

This brings the total number of officers who have been investigated or are under investigation to 13. Tadarrius Bean, Demetrius Haley, Justin Smith, Emmitt Martin III, Desmond Mills Jr. and Preston Hemphill have been fired. Bean, Haley, Smith, Martin and Mills have also been charged with second-degree murder in Nichols’ death.

Information about administrative charges and personnel actions regarding the others will likely be available at the end of next week, Sink said, after they have received documentation of the charges and gone through a required hearing.

Sink’s comments came as city council members grilled Memphis Police Department Chief Cerelyn “CJ” Davis on the brutal beating of Nichols by police officers and whether the department plans to make changes going forward.

Memphis police chief was a ‘rising star’:After Tyre Nichols’ death, Cereyln Davis faces questions.

The committee meeting held at City Hall came one month after Nichols was beaten, hit with a stun gun and pepper sprayed by officers after being pulled over for an alleged traffic violation. He died three days later on Jan. 10.

In the meeting, council members questioned why the names of all officers present on the scene of Nichols’ beating had not been made public, why the Memphis Fire Department did not see video of the beating until two days before it was made public and how the police department plans to address “what went wrong on January 7.”

“The number has grown and it continues,” Davis said. “Everyone that made the scene, even individuals who did not make the scene but also had some level of responsibility are also being evaluated.”

Davis on Tuesday stressed the need to hire more supervisors for the police department, saying they have proposed the creation of 125 first-line supervisor positions, which would bring the ratio of supervisors to frontline officers from one-to-ten to one-to-eight or nine officers. The recommendation is one to-six-or one-to-seven, she said.