Save Austin Now and four businesses are suing the city of Austin, claiming it is not fully implementing Proposition B, a measure passed overwhelmingly by voters to end public homeless encampments in the state capital.

The group has battled City Hall for two years after the Democratic-led city council reversed an existing law that prohibited public encampments, resulting in tent cities popping up on sidewalks throughout Austin. A growing homeless population began living in public parks and near schools and playgrounds, in addition to spots under overpasses and near highways.