INDIANAPOLIS (AP) — The American Civil Liberties Union of Indiana is challenging a new state law that prohibits voters from photographing their ballots and sharing those images on social media.

The lawsuit filed Thursday in federal court in Indianapolis contends the law that took effect July 1 violates Indiana voters’ First Amendment rights.

It names defendants including the Indiana Secretary of State and the state Election Commission.

ACLU of Indiana Legal Director Ken Falk says voters’ ability to photograph their ballot while voting and share those images with family and friends “is an expression of pride and enthusiasm about voting, and is a form of political speech that must be protected.”

Indiana Attorney General’s Office spokeswoman Molly Gillaspie says the office will review the complaint and file its response at the appropriate time.