(NewsNation) — A federal helicopter that has monitored nightly protests outside an Immigration and Customs Enforcement building in Portland, Oregon, was not seen Saturday evening after an online group urged activists to point lasers at “cop copter” aircraft.

Rose City Counter Info, a platform for the Portland area that espouses “anarchist and anti-authoritarian perspectives,” earlier this week posted an invitation for what it called a “laser party” on Saturday. Participants were told to go to “a park, field, or some other public place” to “unleash your beam” at 9 p.m. local time.

The post broadly mentioned targeting the “federal regime.” That presumably refers to ICE and U.S. Border Patrol operations in Portland — specifically, the ICE building on Macadam Avenue where demonstrators have

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