11/09/2013 01:40 EST | Updated 01/23/2014 06:58 EST

Pro-Rob Ford billboard probed for misusing Toronto's logo

A mysterious pro-Rob Ford billboard apparently set up by members of "Ford Nation" is being investigated by the City of Toronto for the unauthorized use of the municipality's logo.

The advertisement was spotted on Friday in a west-end neighbourhood in Etobicoke, the heart of the embattled mayor's support base. The billboard is located on Queen Elizabeth Boulevard, but has since been replaced with a different ad.

The original ad bearing the city's logo included the phrase "We Support Mayor Ford" in red typeface, with a message below reading "Ford = Fiscal Responsiblity" in blue. The ad's typo for the word "responsibility" has spurred ridicule online.

The billboard also cites a Bible verse from John 8:7: "Let the one who has never sinned throw the first stone," a phrase that makes apparent reference to anti-Ford protesters demanding that the mayor resign amid revelations about his crack-cocaine use, public intoxication and a bizarre, rage-filled video in which the admittedly "inebriated" mayor says he's going "to kill" someone.  

Through it all, Ford has declined to step down. His staunchest political allies have also encouraged him to either step down or at take a temporary leave of absence.

Ford's brother, Coun. Doug Ford, has said that the mayor is considering taking one or two weeks off before resuming work.