DALLAS — A federal jury on Friday convicted eight people on terrorism charges over a shooting at a Texas immigration facility that federal prosecutors tied to antifa, the far-left movement that has become a target of the Trump administration.

Jurors also handed down guilty verdicts on other charges, including attempted murder against one member of the group who prosecutors say opened fire last summer outside the Prairieland Detention Center near Dallas, wounding a police officer who was shot in the neck.

Sentencing was set for June.

The trial was closely watched beyond the Fort Worth, Texas, courtroom as some legal experts and critics called it a test of the lengths the government can go to punish protesters.

Lawyers for the accused say they were not antifa members and had instead organized a “noise demonstration” to show support for immigrants who had been detained as part of the Trump administration’s mass deportation operations.

FBI Director Kash Patel has called the Texas case the first time a material support to terrorism charge has targeted people accused of being antifa members.

Short for “anti-fascists,” antifa is not a single organization but rather an umbrella term for far-left-leaning militant groups that confront or resist neo-Nazis and white supremacists at demonstrations.

Defense attorneys told jurors that there was no plan for violence on July 4 outside the facility in Alvarado, Texas.

There were nine defendants on trial in all, eight of whom faced a charge of providing material support to terrorists. Lawyers for the defendants said their clients were not members of antifa.

Prosecutor Shawn Smith told jurors during closing arguments that the group’s actions — including bringing firearms, first aid kids and wearing body armor — were all signals of the group’s intent. He said they practiced “antifa tactics,” and were “obsessed with operational security.”

“This was not a peaceful protest, this was a direct action,” Smith said.

Attorneys for the defendants have said there was no planned ambush and that protesters who brought firearms only did so for their own protection.

The case, defense attorney Blake Burns told jurors, is about the government trying to characterize protesters as terrorists in order to put them in prison.