A Washington, D.C. federal judge on Thursday halted the operations of FilmOn, a controversial online television streaming service. The judge found the television broadcast networks suing FilmOn X LLC for copyright infringement were likely to succeed.

The networks accused FilmOn of "exploiting…some of the most valuable intellectual property created in the United States" by allowing users to stream live television programs online. The plaintiffs, including major broadcast networks ABC, NBC, CBS and FOX, sought an injunction last month. On Thursday, U.S. District Judge Rosemary Collyer, in Fox Television Stations v. FilmOn X, l:13-cv-00758, concluded that FilmOn was retransmitting copyrighted material in violation of federal law. She granted the network's request for a preliminary injunction.