Three Washington state protesters have been found guilty of federal conspiracy charges for sitting in front of a bus taking people to an immigration detention center in Tacoma.

Jac Archer, Justice Forral, and Bajun Mavalwalla II were three of a group of nine people who were arrested last June after responding to former City Council President Ben Stuckart’s request for protesters to block a bus from taking immigrants from one ICE detention center to another.

Six of the nine arrested accepted plea deals, while Archer, Forral, and Mavalwalla took their case to trial, where a jury found them guilty of “conspiracy to impede or injure officers.”

Mavalwalla, a combat veteran, and Forral and Archer, both activists, now face a maximum sentence of six years in federal prison or up to $250,000 in fines. Their attorneys said they intend to appeal the decision.