DETROIT (AP) — Detroit Mayor Mike Duggan said officials with his administration went too far as part of a new anti-graffiti campaign by issuing tickets to building owners who had murals they commissioned or approved on their walls.

Tickets were issued as the city rolled out a previously unpublicized, more-aggressive effort aimed at cleaning up buildings along several major roadways, the Detroit Free Press and The Detroit News reported. It’s part of broader work to fight blight in the city.