NEW YORK (AP) - A civil rights attorney says opponents are planning a lawsuit this week over New York City's order requiring everyone in a heavily Orthodox Jewish neighborhood to be vaccinated for measles.

Lawyer Michael Sussman said Wednesday that the city overreached its authority by threatening to fine residents of four Brooklyn ZIP codes if they refuse to have their children vaccinated.

Sussman also represented a group of parents in suburban Rockland County who challenged the county executive's order barring unvaccinated children from indoor public spaces. A state judge sided with the parents and issued a preliminary injunction against the emergency order.

Mayor Bill de Blasio says he's confident that New York City's vaccination order would survive any legal challenge.

Copyright 2019 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.