The five residents delivered letters to the mayor and City Council members Friday, asking that Knowles resign over his failure to "rein in an out-of-control police department during the protests following Mike Brown’s death."
"We cannot describe how disgusted we are with you," read the letter.
The five, who have not been identified yet, have 60 days to collect the signatures of 15 percent of registered voters in the last mayoral election to prompt the special election. ABC News was unable to obtain the affidavit Saturday since City Hall was closed.
"We have always pushed for Mayor Knowles to be recalled and now in the wake of our current situation we will fully support local citizens who have chosen to reclaim their city and begin to develop the type of transformation they want to see,” said Juju Jacobs, organizer with the Organization for Black Struggle. “We don’t see this as the last thing that needs to happen, but an important step toward restoring accountability to the people of Ferguson.”
Knowles told The Associated Press he has no plans to resign.