Google Inc. has filed suit in U.S. federal court seeking to block enforcement of a decision by the Supreme Court of Canada that would require the search giant to delist certain search results worldwide.

Google, represented by attorneys at Quinn Emanuel Urquhart & Sullivan, argues in its complaint that an injunction issued in late June by Canada’s high court violates its rights under the First Amendment. It also says the decision runs against Section 230 of the Communications Decency Act, a law that gives broad immunities to web companies that host third-party content.