Mayor Jon Mitchell did this week what he hopes all residents of the city will do when they encounter a problem in their neighborhood --- call the police. 

Speaking on his weekly radio program on WBSM, the Mayor said he was driving home on Ash Street Tuesday night when he encountered a group of young people in the middle of the street.

The crowd eventually started moving,  and the Mayor followed them for a time in his car.

Mitchell says the threats and unruly behavior continued so he called the police.  One of the young people was locked up.

The Mayor, a former federal prosecutor, says when something happens that undermines a neighborhood, residents should call the cops.