A federal appeals court upheld the dismissal of a lawsuit seeking to hold Twitter, Facebook and Google liable for the mass shooting at the Pulse nightclub in Florida, alleging the companies aided and abetted the gunman by giving him access to radical jihadist content.

The panel of three judges on the U.S. Court of Appeals for the Eleventh Circuit wrote that the Anti-Terrorism Act claims brought by several survivors of the shooting, and estates of those who died, should be dismissed because they failed to sufficiently allege the mass shooting was “international terrorism” as defined in the law, and in particular, that it “transcended national boundaries.” The ATA extends liability to anyone who knowingly provides assistance to a person who commits “an act of international terrorism,” provided it is “committed, planned, or authorized” by a designated foreign terrorist organization.