Smoking ban advocates in Casper are suing to demand a recount of a petition challenging the city's new weakened regulations.
The co-leader of Keep Casper Smoke Free, Kim Holloway, filed the lawsuit Wednesday in Natrona County.
The city says the group failed to collect enough signatures on their petition calling for a referendum on the ban. But Holloway says the signatures of up to 95 people were wrongly thrown out.
In June, city councilors partially repealed the smoking ban and allowed smoking in bars that are not in restaurants. Bar owners complained that they were losing business to competitors in Mills and Evansville.