Gov. Gavin Newsom Monday threatened a possible lawsuit against the city of Norwalk, urging city officials to reverse its newly adopted moratorium on emergency shelters for the homeless as well as supportive and transitional housing.

State housing officials warned the city Monday that its policy violates state law. The five city council members voted unanimously Tuesday to extend it anyway, banning new permits for shelters, interim housing and supportive apartments for unhoused people.