The Detroit municipal building was discovered damaged a day before prosecutors allege a man and woman hit the Guardian Building with a slingshot.

Two people have been charged with vandalizing the Guardian Building in downtown Detroit, and city police are investigating to see if they are responsible for similar property damage in the same area last week, officials said.

Two people have been charged with vandalizing the Guardian Building in Detroit using a slingshot, the Wayne County Prosecutor's Office reported. The vandalism incident, which was witnessed by a security guard,